Home / 726,618.80-1,002,730.92-404,359.76

Finding the Fourth Proportional to 726,618.80, 1,002,730.92 and 404,359.76

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Solution

The fourth proportional to 726,618.80, 1,002,730.92 and 404,359.76 is: 558,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,618.80 : 1,002,730.92 = 404,359.76 : x
  2. Step 2: Convert to fraction form
    726,618.80/1,002,730.92 = 404,359.76/x
  3. Step 3: Cross multiply
    726,618.80x = 1,002,730.92 × 404,359.76
  4. Step 4: Simplify right side
    726,618.80x = 405,464,034,155.78
  5. Step 5: Solve for x
    x = 405,464,034,155.78/726,618.80
  6. Step 6: Final answer
    x = 558,014.79

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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.