Home / 431,594.12-647,577.79-231,681.06

Finding the Fourth Proportional to 431,594.12, 647,577.79 and 231,681.06

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Solution

The fourth proportional to 431,594.12, 647,577.79 and 231,681.06 is: 347,621.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,594.12 : 647,577.79 = 231,681.06 : x
  2. Step 2: Convert to fraction form
    431,594.12/647,577.79 = 231,681.06/x
  3. Step 3: Cross multiply
    431,594.12x = 647,577.79 × 231,681.06
  4. Step 4: Simplify right side
    431,594.12x = 150,031,508,240.46
  5. Step 5: Solve for x
    x = 150,031,508,240.46/431,594.12
  6. Step 6: Final answer
    x = 347,621.76

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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.