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Finding the Fourth Proportional to 491,073.60, 736,610.40 and 313,051.80

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Solution

The fourth proportional to 491,073.60, 736,610.40 and 313,051.80 is: 469,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,073.60 : 736,610.40 = 313,051.80 : x
  2. Step 2: Convert to fraction form
    491,073.60/736,610.40 = 313,051.80/x
  3. Step 3: Cross multiply
    491,073.60x = 736,610.40 × 313,051.80
  4. Step 4: Simplify right side
    491,073.60x = 230,597,211,618.72
  5. Step 5: Solve for x
    x = 230,597,211,618.72/491,073.60
  6. Step 6: Final answer
    x = 469,577.70

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Similar ratio
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1.5x scale

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.