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Finding the Fourth Proportional to 399,685.73, 598,454.25 and 304,462.28

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Solution

The fourth proportional to 399,685.73, 598,454.25 and 304,462.28 is: 455,875.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,685.73 : 598,454.25 = 304,462.28 : x
  2. Step 2: Convert to fraction form
    399,685.73/598,454.25 = 304,462.28/x
  3. Step 3: Cross multiply
    399,685.73x = 598,454.25 × 304,462.28
  4. Step 4: Simplify right side
    399,685.73x = 182,206,745,430.69
  5. Step 5: Solve for x
    x = 182,206,745,430.69/399,685.73
  6. Step 6: Final answer
    x = 455,875.03

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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.