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Finding the Fourth Proportional to 397,065.60, 595,788.48 and 247,265.28

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Solution

The fourth proportional to 397,065.60, 595,788.48 and 247,265.28 is: 371,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,065.60 : 595,788.48 = 247,265.28 : x
  2. Step 2: Convert to fraction form
    397,065.60/595,788.48 = 247,265.28/x
  3. Step 3: Cross multiply
    397,065.60x = 595,788.48 × 247,265.28
  4. Step 4: Simplify right side
    397,065.60x = 147,317,805,327.97
  5. Step 5: Solve for x
    x = 147,317,805,327.97/397,065.60
  6. Step 6: Final answer
    x = 371,016.29

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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.