Home / 1,290,211.92-1,934,713.08-691,062.48

Finding the Fourth Proportional to 1,290,211.92, 1,934,713.08 and 691,062.48

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Solution

The fourth proportional to 1,290,211.92, 1,934,713.08 and 691,062.48 is: 1,036,269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,211.92 : 1,934,713.08 = 691,062.48 : x
  2. Step 2: Convert to fraction form
    1,290,211.92/1,934,713.08 = 691,062.48/x
  3. Step 3: Cross multiply
    1,290,211.92x = 1,934,713.08 × 691,062.48
  4. Step 4: Simplify right side
    1,290,211.92x = 1,337,007,619,153.24
  5. Step 5: Solve for x
    x = 1,337,007,619,153.24/1,290,211.92
  6. Step 6: Final answer
    x = 1,036,269.78

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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.