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Finding the Fourth Proportional to 607,037.20, 910,555.80 and 291,331.60

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Solution

The fourth proportional to 607,037.20, 910,555.80 and 291,331.60 is: 436,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,037.20 : 910,555.80 = 291,331.60 : x
  2. Step 2: Convert to fraction form
    607,037.20/910,555.80 = 291,331.60/x
  3. Step 3: Cross multiply
    607,037.20x = 910,555.80 × 291,331.60
  4. Step 4: Simplify right side
    607,037.20x = 265,273,678,103.28
  5. Step 5: Solve for x
    x = 265,273,678,103.28/607,037.20
  6. Step 6: Final answer
    x = 436,997.40

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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.