Home / 830,780.09-1,246,059.39-231,691.07

Finding the Fourth Proportional to 830,780.09, 1,246,059.39 and 231,691.07

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Solution

The fourth proportional to 830,780.09, 1,246,059.39 and 231,691.07 is: 347,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,780.09 : 1,246,059.39 = 231,691.07 : x
  2. Step 2: Convert to fraction form
    830,780.09/1,246,059.39 = 231,691.07/x
  3. Step 3: Cross multiply
    830,780.09x = 1,246,059.39 × 231,691.07
  4. Step 4: Simplify right side
    830,780.09x = 288,700,837,336.64
  5. Step 5: Solve for x
    x = 288,700,837,336.64/830,780.09
  6. Step 6: Final answer
    x = 347,505.73

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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.