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Finding the Fourth Proportional to 454,573.70, 681,860.48 and 431,844.10

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Solution

The fourth proportional to 454,573.70, 681,860.48 and 431,844.10 is: 647,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,573.70 : 681,860.48 = 431,844.10 : x
  2. Step 2: Convert to fraction form
    454,573.70/681,860.48 = 431,844.10/x
  3. Step 3: Cross multiply
    454,573.70x = 681,860.48 × 431,844.10
  4. Step 4: Simplify right side
    454,573.70x = 294,457,425,311.17
  5. Step 5: Solve for x
    x = 294,457,425,311.17/454,573.70
  6. Step 6: Final answer
    x = 647,766.08

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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.