Home / 726,748.11-1,002,898.92-404,455.38

Finding the Fourth Proportional to 726,748.11, 1,002,898.92 and 404,455.38

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Solution

The fourth proportional to 726,748.11, 1,002,898.92 and 404,455.38 is: 558,140.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,748.11 : 1,002,898.92 = 404,455.38 : x
  2. Step 2: Convert to fraction form
    726,748.11/1,002,898.92 = 404,455.38/x
  3. Step 3: Cross multiply
    726,748.11x = 1,002,898.92 × 404,455.38
  4. Step 4: Simplify right side
    726,748.11x = 405,627,863,790.19
  5. Step 5: Solve for x
    x = 405,627,863,790.19/726,748.11
  6. Step 6: Final answer
    x = 558,140.93

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1.5x scale

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.