Home / 461,212.20-691,818.30-399,004.20

Finding the Fourth Proportional to 461,212.20, 691,818.30 and 399,004.20

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Solution

The fourth proportional to 461,212.20, 691,818.30 and 399,004.20 is: 598,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,212.20 : 691,818.30 = 399,004.20 : x
  2. Step 2: Convert to fraction form
    461,212.20/691,818.30 = 399,004.20/x
  3. Step 3: Cross multiply
    461,212.20x = 691,818.30 × 399,004.20
  4. Step 4: Simplify right side
    461,212.20x = 276,038,407,336.86
  5. Step 5: Solve for x
    x = 276,038,407,336.86/461,212.20
  6. Step 6: Final answer
    x = 598,506.30

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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.