Home / 765,044.90-1,147,568.15-285,265.37

Finding the Fourth Proportional to 765,044.90, 1,147,568.15 and 285,265.37

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Solution

The fourth proportional to 765,044.90, 1,147,568.15 and 285,265.37 is: 427,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,044.90 : 1,147,568.15 = 285,265.37 : x
  2. Step 2: Convert to fraction form
    765,044.90/1,147,568.15 = 285,265.37/x
  3. Step 3: Cross multiply
    765,044.90x = 1,147,568.15 × 285,265.37
  4. Step 4: Simplify right side
    765,044.90x = 327,361,454,352.56
  5. Step 5: Solve for x
    x = 327,361,454,352.56/765,044.90
  6. Step 6: Final answer
    x = 427,898.35

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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.