Home / 726,430.69-1,002,460.61-404,139.79

Finding the Fourth Proportional to 726,430.69, 1,002,460.61 and 404,139.79

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Solution

The fourth proportional to 726,430.69, 1,002,460.61 and 404,139.79 is: 557,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,430.69 : 1,002,460.61 = 404,139.79 : x
  2. Step 2: Convert to fraction form
    726,430.69/1,002,460.61 = 404,139.79/x
  3. Step 3: Cross multiply
    726,430.69x = 1,002,460.61 × 404,139.79
  4. Step 4: Simplify right side
    726,430.69x = 405,134,218,387.97
  5. Step 5: Solve for x
    x = 405,134,218,387.97/726,430.69
  6. Step 6: Final answer
    x = 557,705.26

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Double scale
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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.