Home / 1,005,200.90-1,507,801.35-445,328.90

Finding the Fourth Proportional to 1,005,200.90, 1,507,801.35 and 445,328.90

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Solution

The fourth proportional to 1,005,200.90, 1,507,801.35 and 445,328.90 is: 667,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,200.90 : 1,507,801.35 = 445,328.90 : x
  2. Step 2: Convert to fraction form
    1,005,200.90/1,507,801.35 = 445,328.90/x
  3. Step 3: Cross multiply
    1,005,200.90x = 1,507,801.35 × 445,328.90
  4. Step 4: Simplify right side
    1,005,200.90x = 671,467,516,614.02
  5. Step 5: Solve for x
    x = 671,467,516,614.02/1,005,200.90
  6. Step 6: Final answer
    x = 667,993.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.