Home / 659,134.60-988,932.30-285,425.80

Finding the Fourth Proportional to 659,134.60, 988,932.30 and 285,425.80

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Solution

The fourth proportional to 659,134.60, 988,932.30 and 285,425.80 is: 428,238.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,134.60 : 988,932.30 = 285,425.80 : x
  2. Step 2: Convert to fraction form
    659,134.60/988,932.30 = 285,425.80/x
  3. Step 3: Cross multiply
    659,134.60x = 988,932.30 × 285,425.80
  4. Step 4: Simplify right side
    659,134.60x = 282,266,792,873.34
  5. Step 5: Solve for x
    x = 282,266,792,873.34/659,134.60
  6. Step 6: Final answer
    x = 428,238.47

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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.