Home / 2,159,765.20-3,239,647.80-961,685.20

Finding the Fourth Proportional to 2,159,765.20, 3,239,647.80 and 961,685.20

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Solution

The fourth proportional to 2,159,765.20, 3,239,647.80 and 961,685.20 is: 1,442,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,765.20 : 3,239,647.80 = 961,685.20 : x
  2. Step 2: Convert to fraction form
    2,159,765.20/3,239,647.80 = 961,685.20/x
  3. Step 3: Cross multiply
    2,159,765.20x = 3,239,647.80 × 961,685.20
  4. Step 4: Simplify right side
    2,159,765.20x = 3,115,521,342,472.56
  5. Step 5: Solve for x
    x = 3,115,521,342,472.56/2,159,765.20
  6. Step 6: Final answer
    x = 1,442,527.80

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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.