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Finding the Fourth Proportional to 455,791.52, 628,633.68 and 425,234

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Solution

The fourth proportional to 455,791.52, 628,633.68 and 425,234 is: 586,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,791.52 : 628,633.68 = 425,234 : x
  2. Step 2: Convert to fraction form
    455,791.52/628,633.68 = 425,234/x
  3. Step 3: Cross multiply
    455,791.52x = 628,633.68 × 425,234
  4. Step 4: Simplify right side
    455,791.52x = 267,316,414,281.12
  5. Step 5: Solve for x
    x = 267,316,414,281.12/455,791.52
  6. Step 6: Final answer
    x = 586,488.35

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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.