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Finding the Fourth Proportional to 659,910.43, 910,676.42 and 358,104.43

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Solution

The fourth proportional to 659,910.43, 910,676.42 and 358,104.43 is: 494,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,910.43 : 910,676.42 = 358,104.43 : x
  2. Step 2: Convert to fraction form
    659,910.43/910,676.42 = 358,104.43/x
  3. Step 3: Cross multiply
    659,910.43x = 910,676.42 × 358,104.43
  4. Step 4: Simplify right side
    659,910.43x = 326,117,260,298.54
  5. Step 5: Solve for x
    x = 326,117,260,298.54/659,910.43
  6. Step 6: Final answer
    x = 494,184.13

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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.