Home / 726,143.48-1,002,289.03-484,425.45

Finding the Fourth Proportional to 726,143.48, 1,002,289.03 and 484,425.45

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Solution

The fourth proportional to 726,143.48, 1,002,289.03 and 484,425.45 is: 668,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,143.48 : 1,002,289.03 = 484,425.45 : x
  2. Step 2: Convert to fraction form
    726,143.48/1,002,289.03 = 484,425.45/x
  3. Step 3: Cross multiply
    726,143.48x = 1,002,289.03 × 484,425.45
  4. Step 4: Simplify right side
    726,143.48x = 485,534,314,471.41
  5. Step 5: Solve for x
    x = 485,534,314,471.41/726,143.48
  6. Step 6: Final answer
    x = 668,647.91

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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.