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Finding the Fourth Proportional to 659,910.75, 989,866.13 and 239,187.03

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Solution

The fourth proportional to 659,910.75, 989,866.13 and 239,187.03 is: 358,780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,910.75 : 989,866.13 = 239,187.03 : x
  2. Step 2: Convert to fraction form
    659,910.75/989,866.13 = 239,187.03/x
  3. Step 3: Cross multiply
    659,910.75x = 989,866.13 × 239,187.03
  4. Step 4: Simplify right side
    659,910.75x = 236,763,138,536.36
  5. Step 5: Solve for x
    x = 236,763,138,536.36/659,910.75
  6. Step 6: Final answer
    x = 358,780.55

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Similar ratio
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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.