Home / 1,275,986.26-1,912,173.90-707,617.36

Finding the Fourth Proportional to 1,275,986.26, 1,912,173.90 and 707,617.36

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Solution

The fourth proportional to 1,275,986.26, 1,912,173.90 and 707,617.36 is: 1,060,424.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,986.26 : 1,912,173.90 = 707,617.36 : x
  2. Step 2: Convert to fraction form
    1,275,986.26/1,912,173.90 = 707,617.36/x
  3. Step 3: Cross multiply
    1,275,986.26x = 1,912,173.90 × 707,617.36
  4. Step 4: Simplify right side
    1,275,986.26x = 1,353,087,446,978.90
  5. Step 5: Solve for x
    x = 1,353,087,446,978.90/1,275,986.26
  6. Step 6: Final answer
    x = 1,060,424.78

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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.