Home / 815,155.57-1,222,772.67-268,035.86

Finding the Fourth Proportional to 815,155.57, 1,222,772.67 and 268,035.86

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Solution

The fourth proportional to 815,155.57, 1,222,772.67 and 268,035.86 is: 402,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,155.57 : 1,222,772.67 = 268,035.86 : x
  2. Step 2: Convert to fraction form
    815,155.57/1,222,772.67 = 268,035.86/x
  3. Step 3: Cross multiply
    815,155.57x = 1,222,772.67 × 268,035.86
  4. Step 4: Simplify right side
    815,155.57x = 327,746,927,244.88
  5. Step 5: Solve for x
    x = 327,746,927,244.88/815,155.57
  6. Step 6: Final answer
    x = 402,066.72

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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.