Home / 1,329,814.13-1,995,001.43-431,185.82

Finding the Fourth Proportional to 1,329,814.13, 1,995,001.43 and 431,185.82

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Solution

The fourth proportional to 1,329,814.13, 1,995,001.43 and 431,185.82 is: 646,869.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,814.13 : 1,995,001.43 = 431,185.82 : x
  2. Step 2: Convert to fraction form
    1,329,814.13/1,995,001.43 = 431,185.82/x
  3. Step 3: Cross multiply
    1,329,814.13x = 1,995,001.43 × 431,185.82
  4. Step 4: Simplify right side
    1,329,814.13x = 860,216,315,364.79
  5. Step 5: Solve for x
    x = 860,216,315,364.79/1,329,814.13
  6. Step 6: Final answer
    x = 646,869.59

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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.