Home / 1,007,448-1,390,278.24-554,737.92

Finding the Fourth Proportional to 1,007,448, 1,390,278.24 and 554,737.92

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Solution

The fourth proportional to 1,007,448, 1,390,278.24 and 554,737.92 is: 765,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,448 : 1,390,278.24 = 554,737.92 : x
  2. Step 2: Convert to fraction form
    1,007,448/1,390,278.24 = 554,737.92/x
  3. Step 3: Cross multiply
    1,007,448x = 1,390,278.24 × 554,737.92
  4. Step 4: Simplify right side
    1,007,448x = 771,240,059,078.86
  5. Step 5: Solve for x
    x = 771,240,059,078.86/1,007,448
  6. Step 6: Final answer
    x = 765,538.33

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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.