Home / 769,892.10-1,154,838.15-486,456.90

Finding the Fourth Proportional to 769,892.10, 1,154,838.15 and 486,456.90

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Solution

The fourth proportional to 769,892.10, 1,154,838.15 and 486,456.90 is: 729,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,892.10 : 1,154,838.15 = 486,456.90 : x
  2. Step 2: Convert to fraction form
    769,892.10/1,154,838.15 = 486,456.90/x
  3. Step 3: Cross multiply
    769,892.10x = 1,154,838.15 × 486,456.90
  4. Step 4: Simplify right side
    769,892.10x = 561,778,986,450.74
  5. Step 5: Solve for x
    x = 561,778,986,450.74/769,892.10
  6. Step 6: Final answer
    x = 729,685.35

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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.