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Finding the Fourth Proportional to 391,044.38, 585,264.69 and 295,749.50

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Solution

The fourth proportional to 391,044.38, 585,264.69 and 295,749.50 is: 442,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,044.38 : 585,264.69 = 295,749.50 : x
  2. Step 2: Convert to fraction form
    391,044.38/585,264.69 = 295,749.50/x
  3. Step 3: Cross multiply
    391,044.38x = 585,264.69 × 295,749.50
  4. Step 4: Simplify right side
    391,044.38x = 173,091,736,508.83
  5. Step 5: Solve for x
    x = 173,091,736,508.83/391,044.38
  6. Step 6: Final answer
    x = 442,639.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.