Home / 1,329,932.61-1,995,179.12-431,304.28

Finding the Fourth Proportional to 1,329,932.61, 1,995,179.12 and 431,304.28

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Solution

The fourth proportional to 1,329,932.61, 1,995,179.12 and 431,304.28 is: 647,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,932.61 : 1,995,179.12 = 431,304.28 : x
  2. Step 2: Convert to fraction form
    1,329,932.61/1,995,179.12 = 431,304.28/x
  3. Step 3: Cross multiply
    1,329,932.61x = 1,995,179.12 × 431,304.28
  4. Step 4: Simplify right side
    1,329,932.61x = 860,529,283,846.74
  5. Step 5: Solve for x
    x = 860,529,283,846.74/1,329,932.61
  6. Step 6: Final answer
    x = 647,047.29

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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.