Home / 397,972.80-596,959.20-272,001.60

Finding the Fourth Proportional to 397,972.80, 596,959.20 and 272,001.60

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Solution

The fourth proportional to 397,972.80, 596,959.20 and 272,001.60 is: 408,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,972.80 : 596,959.20 = 272,001.60 : x
  2. Step 2: Convert to fraction form
    397,972.80/596,959.20 = 272,001.60/x
  3. Step 3: Cross multiply
    397,972.80x = 596,959.20 × 272,001.60
  4. Step 4: Simplify right side
    397,972.80x = 162,373,857,534.72
  5. Step 5: Solve for x
    x = 162,373,857,534.72/397,972.80
  6. Step 6: Final answer
    x = 408,002.40

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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.