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Finding the Fourth Proportional to 654,676.68, 903,318.33 and 382,691.97

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Solution

The fourth proportional to 654,676.68, 903,318.33 and 382,691.97 is: 528,035.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,676.68 : 903,318.33 = 382,691.97 : x
  2. Step 2: Convert to fraction form
    654,676.68/903,318.33 = 382,691.97/x
  3. Step 3: Cross multiply
    654,676.68x = 903,318.33 × 382,691.97
  4. Step 4: Simplify right side
    654,676.68x = 345,692,671,244.81
  5. Step 5: Solve for x
    x = 345,692,671,244.81/654,676.68
  6. Step 6: Final answer
    x = 528,035.72

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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.