Home / 461,330.10-691,995.15-443,615.40

Finding the Fourth Proportional to 461,330.10, 691,995.15 and 443,615.40

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Solution

The fourth proportional to 461,330.10, 691,995.15 and 443,615.40 is: 665,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,330.10 : 691,995.15 = 443,615.40 : x
  2. Step 2: Convert to fraction form
    461,330.10/691,995.15 = 443,615.40/x
  3. Step 3: Cross multiply
    461,330.10x = 691,995.15 × 443,615.40
  4. Step 4: Simplify right side
    461,330.10x = 306,979,705,265.31
  5. Step 5: Solve for x
    x = 306,979,705,265.31/461,330.10
  6. Step 6: Final answer
    x = 665,423.10

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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.