Home / 670,130.10-1,005,195.15-291,232.35

Finding the Fourth Proportional to 670,130.10, 1,005,195.15 and 291,232.35

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Solution

The fourth proportional to 670,130.10, 1,005,195.15 and 291,232.35 is: 436,848.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,130.10 : 1,005,195.15 = 291,232.35 : x
  2. Step 2: Convert to fraction form
    670,130.10/1,005,195.15 = 291,232.35/x
  3. Step 3: Cross multiply
    670,130.10x = 1,005,195.15 × 291,232.35
  4. Step 4: Simplify right side
    670,130.10x = 292,745,345,743.10
  5. Step 5: Solve for x
    x = 292,745,345,743.10/670,130.10
  6. Step 6: Final answer
    x = 436,848.53

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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.