Home / 751,909.07-1,127,844.86-219,434.72

Finding the Fourth Proportional to 751,909.07, 1,127,844.86 and 219,434.72

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Solution

The fourth proportional to 751,909.07, 1,127,844.86 and 219,434.72 is: 329,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,909.07 : 1,127,844.86 = 219,434.72 : x
  2. Step 2: Convert to fraction form
    751,909.07/1,127,844.86 = 219,434.72/x
  3. Step 3: Cross multiply
    751,909.07x = 1,127,844.86 × 219,434.72
  4. Step 4: Simplify right side
    751,909.07x = 247,488,314,321.14
  5. Step 5: Solve for x
    x = 247,488,314,321.14/751,909.07
  6. Step 6: Final answer
    x = 329,146.60

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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.