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Finding the Fourth Proportional to 695,392.13, 959,790.89 and 423,549.65

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Solution

The fourth proportional to 695,392.13, 959,790.89 and 423,549.65 is: 584,589.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,392.13 : 959,790.89 = 423,549.65 : x
  2. Step 2: Convert to fraction form
    695,392.13/959,790.89 = 423,549.65/x
  3. Step 3: Cross multiply
    695,392.13x = 959,790.89 × 423,549.65
  4. Step 4: Simplify right side
    695,392.13x = 406,519,093,414.94
  5. Step 5: Solve for x
    x = 406,519,093,414.94/695,392.13
  6. Step 6: Final answer
    x = 584,589.72

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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.