Home / 1,238,288.40-1,857,691.80-396,925.20

Finding the Fourth Proportional to 1,238,288.40, 1,857,691.80 and 396,925.20

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Solution

The fourth proportional to 1,238,288.40, 1,857,691.80 and 396,925.20 is: 595,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,288.40 : 1,857,691.80 = 396,925.20 : x
  2. Step 2: Convert to fraction form
    1,238,288.40/1,857,691.80 = 396,925.20/x
  3. Step 3: Cross multiply
    1,238,288.40x = 1,857,691.80 × 396,925.20
  4. Step 4: Simplify right side
    1,238,288.40x = 737,364,689,253.36
  5. Step 5: Solve for x
    x = 737,364,689,253.36/1,238,288.40
  6. Step 6: Final answer
    x = 595,470.88

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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.