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Finding the Fourth Proportional to 674,162.44, 930,327.78 and 387,675.94

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Solution

The fourth proportional to 674,162.44, 930,327.78 and 387,675.94 is: 534,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,162.44 : 930,327.78 = 387,675.94 : x
  2. Step 2: Convert to fraction form
    674,162.44/930,327.78 = 387,675.94/x
  3. Step 3: Cross multiply
    674,162.44x = 930,327.78 × 387,675.94
  4. Step 4: Simplify right side
    674,162.44x = 360,665,696,619.61
  5. Step 5: Solve for x
    x = 360,665,696,619.61/674,162.44
  6. Step 6: Final answer
    x = 534,983.37

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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.