Home / 768,121.02-1,060,006.17-428,589.27

Finding the Fourth Proportional to 768,121.02, 1,060,006.17 and 428,589.27

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Solution

The fourth proportional to 768,121.02, 1,060,006.17 and 428,589.27 is: 591,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,121.02 : 1,060,006.17 = 428,589.27 : x
  2. Step 2: Convert to fraction form
    768,121.02/1,060,006.17 = 428,589.27/x
  3. Step 3: Cross multiply
    768,121.02x = 1,060,006.17 × 428,589.27
  4. Step 4: Simplify right side
    768,121.02x = 454,307,270,595.80
  5. Step 5: Solve for x
    x = 454,307,270,595.80/768,121.02
  6. Step 6: Final answer
    x = 591,452.73

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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.