Home / 747,061.92-1,120,922.28-391,990.32

Finding the Fourth Proportional to 747,061.92, 1,120,922.28 and 391,990.32

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Solution

The fourth proportional to 747,061.92, 1,120,922.28 and 391,990.32 is: 588,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,061.92 : 1,120,922.28 = 391,990.32 : x
  2. Step 2: Convert to fraction form
    747,061.92/1,120,922.28 = 391,990.32/x
  3. Step 3: Cross multiply
    747,061.92x = 1,120,922.28 × 391,990.32
  4. Step 4: Simplify right side
    747,061.92x = 439,390,683,232.33
  5. Step 5: Solve for x
    x = 439,390,683,232.33/747,061.92
  6. Step 6: Final answer
    x = 588,158.32

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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.