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Finding the Fourth Proportional to 979,766.88, 1,351,984.96 and 549,948.48

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Solution

The fourth proportional to 979,766.88, 1,351,984.96 and 549,948.48 is: 758,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,766.88 : 1,351,984.96 = 549,948.48 : x
  2. Step 2: Convert to fraction form
    979,766.88/1,351,984.96 = 549,948.48/x
  3. Step 3: Cross multiply
    979,766.88x = 1,351,984.96 × 549,948.48
  4. Step 4: Simplify right side
    979,766.88x = 743,522,073,734.86
  5. Step 5: Solve for x
    x = 743,522,073,734.86/979,766.88
  6. Step 6: Final answer
    x = 758,876.51

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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.