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Finding the Fourth Proportional to 615,681.57, 922,721.28 and 250,517.61

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Solution

The fourth proportional to 615,681.57, 922,721.28 and 250,517.61 is: 375,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,681.57 : 922,721.28 = 250,517.61 : x
  2. Step 2: Convert to fraction form
    615,681.57/922,721.28 = 250,517.61/x
  3. Step 3: Cross multiply
    615,681.57x = 922,721.28 × 250,517.61
  4. Step 4: Simplify right side
    615,681.57x = 231,157,929,761.74
  5. Step 5: Solve for x
    x = 231,157,929,761.74/615,681.57
  6. Step 6: Final answer
    x = 375,450.46

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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.