Home / 1,329,946.23-1,995,199.56-431,317.89

Finding the Fourth Proportional to 1,329,946.23, 1,995,199.56 and 431,317.89

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Solution

The fourth proportional to 1,329,946.23, 1,995,199.56 and 431,317.89 is: 647,067.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,946.23 : 1,995,199.56 = 431,317.89 : x
  2. Step 2: Convert to fraction form
    1,329,946.23/1,995,199.56 = 431,317.89/x
  3. Step 3: Cross multiply
    1,329,946.23x = 1,995,199.56 × 431,317.89
  4. Step 4: Simplify right side
    1,329,946.23x = 860,565,264,348.13
  5. Step 5: Solve for x
    x = 860,565,264,348.13/1,329,946.23
  6. Step 6: Final answer
    x = 647,067.71

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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.