Home / 726,132.40-1,002,090.34-403,865.80

Finding the Fourth Proportional to 726,132.40, 1,002,090.34 and 403,865.80

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Solution

The fourth proportional to 726,132.40, 1,002,090.34 and 403,865.80 is: 557,350.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,132.40 : 1,002,090.34 = 403,865.80 : x
  2. Step 2: Convert to fraction form
    726,132.40/1,002,090.34 = 403,865.80/x
  3. Step 3: Cross multiply
    726,132.40x = 1,002,090.34 × 403,865.80
  4. Step 4: Simplify right side
    726,132.40x = 404,710,016,836.37
  5. Step 5: Solve for x
    x = 404,710,016,836.37/726,132.40
  6. Step 6: Final answer
    x = 557,350.17

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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.