Home / 1,266,308.70-1,747,672.47-722,319.90

Finding the Fourth Proportional to 1,266,308.70, 1,747,672.47 and 722,319.90

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Solution

The fourth proportional to 1,266,308.70, 1,747,672.47 and 722,319.90 is: 996,896.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,308.70 : 1,747,672.47 = 722,319.90 : x
  2. Step 2: Convert to fraction form
    1,266,308.70/1,747,672.47 = 722,319.90/x
  3. Step 3: Cross multiply
    1,266,308.70x = 1,747,672.47 × 722,319.90
  4. Step 4: Simplify right side
    1,266,308.70x = 1,262,378,603,763.15
  5. Step 5: Solve for x
    x = 1,262,378,603,763.15/1,266,308.70
  6. Step 6: Final answer
    x = 996,896.42

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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.