Home / 1,329,925.89-1,995,169.12-431,297.59

Finding the Fourth Proportional to 1,329,925.89, 1,995,169.12 and 431,297.59

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Solution

The fourth proportional to 1,329,925.89, 1,995,169.12 and 431,297.59 is: 647,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,925.89 : 1,995,169.12 = 431,297.59 : x
  2. Step 2: Convert to fraction form
    1,329,925.89/1,995,169.12 = 431,297.59/x
  3. Step 3: Cross multiply
    1,329,925.89x = 1,995,169.12 × 431,297.59
  4. Step 4: Simplify right side
    1,329,925.89x = 860,511,625,161.78
  5. Step 5: Solve for x
    x = 860,511,625,161.78/1,329,925.89
  6. Step 6: Final answer
    x = 647,037.28

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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.