Home / 726,489.81-1,002,560.90-404,213.49

Finding the Fourth Proportional to 726,489.81, 1,002,560.90 and 404,213.49

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Solution

The fourth proportional to 726,489.81, 1,002,560.90 and 404,213.49 is: 557,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,489.81 : 1,002,560.90 = 404,213.49 : x
  2. Step 2: Convert to fraction form
    726,489.81/1,002,560.90 = 404,213.49/x
  3. Step 3: Cross multiply
    726,489.81x = 1,002,560.90 × 404,213.49
  4. Step 4: Simplify right side
    726,489.81x = 405,248,638,305.47
  5. Step 5: Solve for x
    x = 405,248,638,305.47/726,489.81
  6. Step 6: Final answer
    x = 557,817.37

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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.