Home / 521,744.24-782,490.40-217,974.26

Finding the Fourth Proportional to 521,744.24, 782,490.40 and 217,974.26

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Solution

The fourth proportional to 521,744.24, 782,490.40 and 217,974.26 is: 326,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,744.24 : 782,490.40 = 217,974.26 : x
  2. Step 2: Convert to fraction form
    521,744.24/782,490.40 = 217,974.26/x
  3. Step 3: Cross multiply
    521,744.24x = 782,490.40 × 217,974.26
  4. Step 4: Simplify right side
    521,744.24x = 170,562,767,308.39
  5. Step 5: Solve for x
    x = 170,562,767,308.39/521,744.24
  6. Step 6: Final answer
    x = 326,908.77

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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.