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Finding the Fourth Proportional to 659,645.29, 910,330.82 and 373,159.63

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Solution

The fourth proportional to 659,645.29, 910,330.82 and 373,159.63 is: 514,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,645.29 : 910,330.82 = 373,159.63 : x
  2. Step 2: Convert to fraction form
    659,645.29/910,330.82 = 373,159.63/x
  3. Step 3: Cross multiply
    659,645.29x = 910,330.82 × 373,159.63
  4. Step 4: Simplify right side
    659,645.29x = 339,698,711,968.80
  5. Step 5: Solve for x
    x = 339,698,711,968.80/659,645.29
  6. Step 6: Final answer
    x = 514,971.78

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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.