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Finding the Fourth Proportional to 527,883.03, 728,307.32 and 298,418.13

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Solution

The fourth proportional to 527,883.03, 728,307.32 and 298,418.13 is: 411,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,883.03 : 728,307.32 = 298,418.13 : x
  2. Step 2: Convert to fraction form
    527,883.03/728,307.32 = 298,418.13/x
  3. Step 3: Cross multiply
    527,883.03x = 728,307.32 × 298,418.13
  4. Step 4: Simplify right side
    527,883.03x = 217,340,107,007.62
  5. Step 5: Solve for x
    x = 217,340,107,007.62/527,883.03
  6. Step 6: Final answer
    x = 411,720.20

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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.