Home / 1,005,272.10-1,507,908.15-445,400.10

Finding the Fourth Proportional to 1,005,272.10, 1,507,908.15 and 445,400.10

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Solution

The fourth proportional to 1,005,272.10, 1,507,908.15 and 445,400.10 is: 668,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,272.10 : 1,507,908.15 = 445,400.10 : x
  2. Step 2: Convert to fraction form
    1,005,272.10/1,507,908.15 = 445,400.10/x
  3. Step 3: Cross multiply
    1,005,272.10x = 1,507,908.15 × 445,400.10
  4. Step 4: Simplify right side
    1,005,272.10x = 671,622,440,800.82
  5. Step 5: Solve for x
    x = 671,622,440,800.82/1,005,272.10
  6. Step 6: Final answer
    x = 668,100.15

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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.