Home / 639,114.02-882,296.92-397,474.45

Finding the Fourth Proportional to 639,114.02, 882,296.92 and 397,474.45

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Solution

The fourth proportional to 639,114.02, 882,296.92 and 397,474.45 is: 548,713.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,114.02 : 882,296.92 = 397,474.45 : x
  2. Step 2: Convert to fraction form
    639,114.02/882,296.92 = 397,474.45/x
  3. Step 3: Cross multiply
    639,114.02x = 882,296.92 × 397,474.45
  4. Step 4: Simplify right side
    639,114.02x = 350,690,481,304.80
  5. Step 5: Solve for x
    x = 350,690,481,304.80/639,114.02
  6. Step 6: Final answer
    x = 548,713.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.