Home / 726,798.10-1,002,971.42-404,508.28

Finding the Fourth Proportional to 726,798.10, 1,002,971.42 and 404,508.28

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Solution

The fourth proportional to 726,798.10, 1,002,971.42 and 404,508.28 is: 558,215.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,798.10 : 1,002,971.42 = 404,508.28 : x
  2. Step 2: Convert to fraction form
    726,798.10/1,002,971.42 = 404,508.28/x
  3. Step 3: Cross multiply
    726,798.10x = 1,002,971.42 × 404,508.28
  4. Step 4: Simplify right side
    726,798.10x = 405,710,243,993.36
  5. Step 5: Solve for x
    x = 405,710,243,993.36/726,798.10
  6. Step 6: Final answer
    x = 558,215.88

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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.