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Finding the Fourth Proportional to 539,642.73, 809,192.99 and 179,686.34

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Solution

The fourth proportional to 539,642.73, 809,192.99 and 179,686.34 is: 269,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,642.73 : 809,192.99 = 179,686.34 : x
  2. Step 2: Convert to fraction form
    539,642.73/809,192.99 = 179,686.34/x
  3. Step 3: Cross multiply
    539,642.73x = 809,192.99 × 179,686.34
  4. Step 4: Simplify right side
    539,642.73x = 145,400,926,726.76
  5. Step 5: Solve for x
    x = 145,400,926,726.76/539,642.73
  6. Step 6: Final answer
    x = 269,439.24

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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.