Home / 689,148.57-1,033,722.24-215,870.85

Finding the Fourth Proportional to 689,148.57, 1,033,722.24 and 215,870.85

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Solution

The fourth proportional to 689,148.57, 1,033,722.24 and 215,870.85 is: 323,806.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,148.57 : 1,033,722.24 = 215,870.85 : x
  2. Step 2: Convert to fraction form
    689,148.57/1,033,722.24 = 215,870.85/x
  3. Step 3: Cross multiply
    689,148.57x = 1,033,722.24 × 215,870.85
  4. Step 4: Simplify right side
    689,148.57x = 223,150,498,612.70
  5. Step 5: Solve for x
    x = 223,150,498,612.70/689,148.57
  6. Step 6: Final answer
    x = 323,806.08

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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.