Home / 747,812.67-1,031,976.10-408,280.92

Finding the Fourth Proportional to 747,812.67, 1,031,976.10 and 408,280.92

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Solution

The fourth proportional to 747,812.67, 1,031,976.10 and 408,280.92 is: 563,424.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,812.67 : 1,031,976.10 = 408,280.92 : x
  2. Step 2: Convert to fraction form
    747,812.67/1,031,976.10 = 408,280.92/x
  3. Step 3: Cross multiply
    747,812.67x = 1,031,976.10 × 408,280.92
  4. Step 4: Simplify right side
    747,812.67x = 421,336,151,526.01
  5. Step 5: Solve for x
    x = 421,336,151,526.01/747,812.67
  6. Step 6: Final answer
    x = 563,424.73

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.