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Finding the Fourth Proportional to 485,573.46, 726,948.54 and 282,550.81

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Solution

The fourth proportional to 485,573.46, 726,948.54 and 282,550.81 is: 423,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,573.46 : 726,948.54 = 282,550.81 : x
  2. Step 2: Convert to fraction form
    485,573.46/726,948.54 = 282,550.81/x
  3. Step 3: Cross multiply
    485,573.46x = 726,948.54 × 282,550.81
  4. Step 4: Simplify right side
    485,573.46x = 205,399,898,805.32
  5. Step 5: Solve for x
    x = 205,399,898,805.32/485,573.46
  6. Step 6: Final answer
    x = 423,004.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.