Home / 751,779.28-1,127,672.70-190,813.96

Finding the Fourth Proportional to 751,779.28, 1,127,672.70 and 190,813.96

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Solution

The fourth proportional to 751,779.28, 1,127,672.70 and 190,813.96 is: 286,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,779.28 : 1,127,672.70 = 190,813.96 : x
  2. Step 2: Convert to fraction form
    751,779.28/1,127,672.70 = 190,813.96/x
  3. Step 3: Cross multiply
    751,779.28x = 1,127,672.70 × 190,813.96
  4. Step 4: Simplify right side
    751,779.28x = 215,175,693,470.89
  5. Step 5: Solve for x
    x = 215,175,693,470.89/751,779.28
  6. Step 6: Final answer
    x = 286,221.90

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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.