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Finding the Fourth Proportional to 461,202.10, 691,803.15 and 443,487.40

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Solution

The fourth proportional to 461,202.10, 691,803.15 and 443,487.40 is: 665,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,202.10 : 691,803.15 = 443,487.40 : x
  2. Step 2: Convert to fraction form
    461,202.10/691,803.15 = 443,487.40/x
  3. Step 3: Cross multiply
    461,202.10x = 691,803.15 × 443,487.40
  4. Step 4: Simplify right side
    461,202.10x = 306,805,980,305.31
  5. Step 5: Solve for x
    x = 306,805,980,305.31/461,202.10
  6. Step 6: Final answer
    x = 665,231.10

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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.