Home / 726,490.81-1,002,562.28-404,214.49

Finding the Fourth Proportional to 726,490.81, 1,002,562.28 and 404,214.49

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Solution

The fourth proportional to 726,490.81, 1,002,562.28 and 404,214.49 is: 557,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,490.81 : 1,002,562.28 = 404,214.49 : x
  2. Step 2: Convert to fraction form
    726,490.81/1,002,562.28 = 404,214.49/x
  3. Step 3: Cross multiply
    726,490.81x = 1,002,562.28 × 404,214.49
  4. Step 4: Simplify right side
    726,490.81x = 405,250,200,703.44
  5. Step 5: Solve for x
    x = 405,250,200,703.44/726,490.81
  6. Step 6: Final answer
    x = 557,818.76

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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.