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Finding the Fourth Proportional to 659,730.43, 910,431.93 and 373,310.38

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Solution

The fourth proportional to 659,730.43, 910,431.93 and 373,310.38 is: 515,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,730.43 : 910,431.93 = 373,310.38 : x
  2. Step 2: Convert to fraction form
    659,730.43/910,431.93 = 373,310.38/x
  3. Step 3: Cross multiply
    659,730.43x = 910,431.93 × 373,310.38
  4. Step 4: Simplify right side
    659,730.43x = 339,873,689,752.43
  5. Step 5: Solve for x
    x = 339,873,689,752.43/659,730.43
  6. Step 6: Final answer
    x = 515,170.55

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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.