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Finding the Fourth Proportional to 491,080.60, 736,620.90 and 277,629.40

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Solution

The fourth proportional to 491,080.60, 736,620.90 and 277,629.40 is: 416,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,080.60 : 736,620.90 = 277,629.40 : x
  2. Step 2: Convert to fraction form
    491,080.60/736,620.90 = 277,629.40/x
  3. Step 3: Cross multiply
    491,080.60x = 736,620.90 × 277,629.40
  4. Step 4: Simplify right side
    491,080.60x = 204,507,618,494.46
  5. Step 5: Solve for x
    x = 204,507,618,494.46/491,080.60
  6. Step 6: Final answer
    x = 416,444.10

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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.