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Finding the Fourth Proportional to 580,580.30, 870,925.41 and 225,621.69

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Solution

The fourth proportional to 580,580.30, 870,925.41 and 225,621.69 is: 338,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,580.30 : 870,925.41 = 225,621.69 : x
  2. Step 2: Convert to fraction form
    580,580.30/870,925.41 = 225,621.69/x
  3. Step 3: Cross multiply
    580,580.30x = 870,925.41 × 225,621.69
  4. Step 4: Simplify right side
    580,580.30x = 196,499,662,868.14
  5. Step 5: Solve for x
    x = 196,499,662,868.14/580,580.30
  6. Step 6: Final answer
    x = 338,453.90

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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.