Home / 1,274,814.30-1,912,221.45-707,943.90

Finding the Fourth Proportional to 1,274,814.30, 1,912,221.45 and 707,943.90

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Solution

The fourth proportional to 1,274,814.30, 1,912,221.45 and 707,943.90 is: 1,061,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,814.30 : 1,912,221.45 = 707,943.90 : x
  2. Step 2: Convert to fraction form
    1,274,814.30/1,912,221.45 = 707,943.90/x
  3. Step 3: Cross multiply
    1,274,814.30x = 1,912,221.45 × 707,943.90
  4. Step 4: Simplify right side
    1,274,814.30x = 1,353,745,510,976.66
  5. Step 5: Solve for x
    x = 1,353,745,510,976.66/1,274,814.30
  6. Step 6: Final answer
    x = 1,061,915.85

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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.