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Finding the Fourth Proportional to 526,072.74, 726,221.97 and 308,251.14

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Solution

The fourth proportional to 526,072.74, 726,221.97 and 308,251.14 is: 425,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,072.74 : 726,221.97 = 308,251.14 : x
  2. Step 2: Convert to fraction form
    526,072.74/726,221.97 = 308,251.14/x
  3. Step 3: Cross multiply
    526,072.74x = 726,221.97 × 308,251.14
  4. Step 4: Simplify right side
    526,072.74x = 223,858,750,145.55
  5. Step 5: Solve for x
    x = 223,858,750,145.55/526,072.74
  6. Step 6: Final answer
    x = 425,528.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.