Home / 1,189,059.75-1,640,903.67-679,773.06

Finding the Fourth Proportional to 1,189,059.75, 1,640,903.67 and 679,773.06

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Solution

The fourth proportional to 1,189,059.75, 1,640,903.67 and 679,773.06 is: 938,087.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,059.75 : 1,640,903.67 = 679,773.06 : x
  2. Step 2: Convert to fraction form
    1,189,059.75/1,640,903.67 = 679,773.06/x
  3. Step 3: Cross multiply
    1,189,059.75x = 1,640,903.67 × 679,773.06
  4. Step 4: Simplify right side
    1,189,059.75x = 1,115,442,108,921.13
  5. Step 5: Solve for x
    x = 1,115,442,108,921.13/1,189,059.75
  6. Step 6: Final answer
    x = 938,087.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.