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Finding the Fourth Proportional to 453,268.88, 625,399.08 and 283,418

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Solution

The fourth proportional to 453,268.88, 625,399.08 and 283,418 is: 391,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,268.88 : 625,399.08 = 283,418 : x
  2. Step 2: Convert to fraction form
    453,268.88/625,399.08 = 283,418/x
  3. Step 3: Cross multiply
    453,268.88x = 625,399.08 × 283,418
  4. Step 4: Simplify right side
    453,268.88x = 177,249,356,455.44
  5. Step 5: Solve for x
    x = 177,249,356,455.44/453,268.88
  6. Step 6: Final answer
    x = 391,046.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.