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Finding the Fourth Proportional to 668,439.60, 922,504.95 and 366,691.92

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Solution

The fourth proportional to 668,439.60, 922,504.95 and 366,691.92 is: 506,066.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,439.60 : 922,504.95 = 366,691.92 : x
  2. Step 2: Convert to fraction form
    668,439.60/922,504.95 = 366,691.92/x
  3. Step 3: Cross multiply
    668,439.60x = 922,504.95 × 366,691.92
  4. Step 4: Simplify right side
    668,439.60x = 338,275,111,325.00
  5. Step 5: Solve for x
    x = 338,275,111,325.00/668,439.60
  6. Step 6: Final answer
    x = 506,066.83

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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.