Home / 726,143.73-1,002,289.37-484,425.70

Finding the Fourth Proportional to 726,143.73, 1,002,289.37 and 484,425.70

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Solution

The fourth proportional to 726,143.73, 1,002,289.37 and 484,425.70 is: 668,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,143.73 : 1,002,289.37 = 484,425.70 : x
  2. Step 2: Convert to fraction form
    726,143.73/1,002,289.37 = 484,425.70/x
  3. Step 3: Cross multiply
    726,143.73x = 1,002,289.37 × 484,425.70
  4. Step 4: Simplify right side
    726,143.73x = 485,534,732,170.53
  5. Step 5: Solve for x
    x = 485,534,732,170.53/726,143.73
  6. Step 6: Final answer
    x = 668,648.25

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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.