Home / 768,231.52-1,060,158.80-428,701.60

Finding the Fourth Proportional to 768,231.52, 1,060,158.80 and 428,701.60

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Solution

The fourth proportional to 768,231.52, 1,060,158.80 and 428,701.60 is: 591,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,231.52 : 1,060,158.80 = 428,701.60 : x
  2. Step 2: Convert to fraction form
    768,231.52/1,060,158.80 = 428,701.60/x
  3. Step 3: Cross multiply
    768,231.52x = 1,060,158.80 × 428,701.60
  4. Step 4: Simplify right side
    768,231.52x = 454,491,773,814.08
  5. Step 5: Solve for x
    x = 454,491,773,814.08/768,231.52
  6. Step 6: Final answer
    x = 591,607.82

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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.