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Finding the Fourth Proportional to 659,508, 910,121.10 and 373,021.92

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Solution

The fourth proportional to 659,508, 910,121.10 and 373,021.92 is: 514,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,508 : 910,121.10 = 373,021.92 : x
  2. Step 2: Convert to fraction form
    659,508/910,121.10 = 373,021.92/x
  3. Step 3: Cross multiply
    659,508x = 910,121.10 × 373,021.92
  4. Step 4: Simplify right side
    659,508x = 339,495,120,154.51
  5. Step 5: Solve for x
    x = 339,495,120,154.51/659,508
  6. Step 6: Final answer
    x = 514,770.28

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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.