Home / 689,151.57-1,033,726.74-215,873.85

Finding the Fourth Proportional to 689,151.57, 1,033,726.74 and 215,873.85

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Solution

The fourth proportional to 689,151.57, 1,033,726.74 and 215,873.85 is: 323,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,151.57 : 1,033,726.74 = 215,873.85 : x
  2. Step 2: Convert to fraction form
    689,151.57/1,033,726.74 = 215,873.85/x
  3. Step 3: Cross multiply
    689,151.57x = 1,033,726.74 × 215,873.85
  4. Step 4: Simplify right side
    689,151.57x = 223,154,571,211.75
  5. Step 5: Solve for x
    x = 223,154,571,211.75/689,151.57
  6. Step 6: Final answer
    x = 323,810.58

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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.