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Finding the Fourth Proportional to 491,255.40, 736,883.10 and 453,930.60

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Solution

The fourth proportional to 491,255.40, 736,883.10 and 453,930.60 is: 680,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,255.40 : 736,883.10 = 453,930.60 : x
  2. Step 2: Convert to fraction form
    491,255.40/736,883.10 = 453,930.60/x
  3. Step 3: Cross multiply
    491,255.40x = 736,883.10 × 453,930.60
  4. Step 4: Simplify right side
    491,255.40x = 334,493,787,712.86
  5. Step 5: Solve for x
    x = 334,493,787,712.86/491,255.40
  6. Step 6: Final answer
    x = 680,895.90

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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.