Home / 403,493.85-556,823.18-231,418.46

Finding the Fourth Proportional to 403,493.85, 556,823.18 and 231,418.46

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Solution

The fourth proportional to 403,493.85, 556,823.18 and 231,418.46 is: 319,358.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,493.85 : 556,823.18 = 231,418.46 : x
  2. Step 2: Convert to fraction form
    403,493.85/556,823.18 = 231,418.46/x
  3. Step 3: Cross multiply
    403,493.85x = 556,823.18 × 231,418.46
  4. Step 4: Simplify right side
    403,493.85x = 128,859,158,866.70
  5. Step 5: Solve for x
    x = 128,859,158,866.70/403,493.85
  6. Step 6: Final answer
    x = 319,358.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.