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Finding the Fourth Proportional to 521,588.70, 782,091.45 and 240,758.46

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Solution

The fourth proportional to 521,588.70, 782,091.45 and 240,758.46 is: 361,003.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,588.70 : 782,091.45 = 240,758.46 : x
  2. Step 2: Convert to fraction form
    521,588.70/782,091.45 = 240,758.46/x
  3. Step 3: Cross multiply
    521,588.70x = 782,091.45 × 240,758.46
  4. Step 4: Simplify right side
    521,588.70x = 188,295,133,081.17
  5. Step 5: Solve for x
    x = 188,295,133,081.17/521,588.70
  6. Step 6: Final answer
    x = 361,003.09

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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.