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Finding the Fourth Proportional to 668,471.28, 922,534.20 and 366,665.28

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Solution

The fourth proportional to 668,471.28, 922,534.20 and 366,665.28 is: 506,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,471.28 : 922,534.20 = 366,665.28 : x
  2. Step 2: Convert to fraction form
    668,471.28/922,534.20 = 366,665.28/x
  3. Step 3: Cross multiply
    668,471.28x = 922,534.20 × 366,665.28
  4. Step 4: Simplify right side
    668,471.28x = 338,261,260,752.58
  5. Step 5: Solve for x
    x = 338,261,260,752.58/668,471.28
  6. Step 6: Final answer
    x = 506,022.13

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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.