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Finding the Fourth Proportional to 399,166.80, 598,750.20 and 362,425.20

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Solution

The fourth proportional to 399,166.80, 598,750.20 and 362,425.20 is: 543,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,166.80 : 598,750.20 = 362,425.20 : x
  2. Step 2: Convert to fraction form
    399,166.80/598,750.20 = 362,425.20/x
  3. Step 3: Cross multiply
    399,166.80x = 598,750.20 × 362,425.20
  4. Step 4: Simplify right side
    399,166.80x = 217,002,160,985.04
  5. Step 5: Solve for x
    x = 217,002,160,985.04/399,166.80
  6. Step 6: Final answer
    x = 543,637.80

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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.