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Finding the Fourth Proportional to 485,573.96, 726,949.29 and 282,551.31

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Solution

The fourth proportional to 485,573.96, 726,949.29 and 282,551.31 is: 423,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,573.96 : 726,949.29 = 282,551.31 : x
  2. Step 2: Convert to fraction form
    485,573.96/726,949.29 = 282,551.31/x
  3. Step 3: Cross multiply
    485,573.96x = 726,949.29 × 282,551.31
  4. Step 4: Simplify right side
    485,573.96x = 205,400,474,193.07
  5. Step 5: Solve for x
    x = 205,400,474,193.07/485,573.96
  6. Step 6: Final answer
    x = 423,005.54

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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.