Home / 747,812.18-1,031,975.41-408,280.43

Finding the Fourth Proportional to 747,812.18, 1,031,975.41 and 408,280.43

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Solution

The fourth proportional to 747,812.18, 1,031,975.41 and 408,280.43 is: 563,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,812.18 : 1,031,975.41 = 408,280.43 : x
  2. Step 2: Convert to fraction form
    747,812.18/1,031,975.41 = 408,280.43/x
  3. Step 3: Cross multiply
    747,812.18x = 1,031,975.41 × 408,280.43
  4. Step 4: Simplify right side
    747,812.18x = 421,335,356,942.95
  5. Step 5: Solve for x
    x = 421,335,356,942.95/747,812.18
  6. Step 6: Final answer
    x = 563,424.04

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Double scale
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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.