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Finding the Fourth Proportional to 579,354.88, 798,672 and 406,747.84

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Solution

The fourth proportional to 579,354.88, 798,672 and 406,747.84 is: 560,723.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,354.88 : 798,672 = 406,747.84 : x
  2. Step 2: Convert to fraction form
    579,354.88/798,672 = 406,747.84/x
  3. Step 3: Cross multiply
    579,354.88x = 798,672 × 406,747.84
  4. Step 4: Simplify right side
    579,354.88x = 324,858,110,868.48
  5. Step 5: Solve for x
    x = 324,858,110,868.48/579,354.88
  6. Step 6: Final answer
    x = 560,723.87

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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.