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Finding the Fourth Proportional to 491,248.20, 736,872.30 and 485,027.40

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Solution

The fourth proportional to 491,248.20, 736,872.30 and 485,027.40 is: 727,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,248.20 : 736,872.30 = 485,027.40 : x
  2. Step 2: Convert to fraction form
    491,248.20/736,872.30 = 485,027.40/x
  3. Step 3: Cross multiply
    491,248.20x = 736,872.30 × 485,027.40
  4. Step 4: Simplify right side
    491,248.20x = 357,403,255,801.02
  5. Step 5: Solve for x
    x = 357,403,255,801.02/491,248.20
  6. Step 6: Final answer
    x = 727,541.10

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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.