Home / 521,372.52-782,206.74-268,837.20

Finding the Fourth Proportional to 521,372.52, 782,206.74 and 268,837.20

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Solution

The fourth proportional to 521,372.52, 782,206.74 and 268,837.20 is: 403,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,372.52 : 782,206.74 = 268,837.20 : x
  2. Step 2: Convert to fraction form
    521,372.52/782,206.74 = 268,837.20/x
  3. Step 3: Cross multiply
    521,372.52x = 782,206.74 × 268,837.20
  4. Step 4: Simplify right side
    521,372.52x = 210,286,269,802.73
  5. Step 5: Solve for x
    x = 210,286,269,802.73/521,372.52
  6. Step 6: Final answer
    x = 403,332.09

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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.