Home / 521,837.70-782,829.45-222,315.90

Finding the Fourth Proportional to 521,837.70, 782,829.45 and 222,315.90

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Solution

The fourth proportional to 521,837.70, 782,829.45 and 222,315.90 is: 333,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,837.70 : 782,829.45 = 222,315.90 : x
  2. Step 2: Convert to fraction form
    521,837.70/782,829.45 = 222,315.90/x
  3. Step 3: Cross multiply
    521,837.70x = 782,829.45 × 222,315.90
  4. Step 4: Simplify right side
    521,837.70x = 174,035,433,723.26
  5. Step 5: Solve for x
    x = 174,035,433,723.26/521,837.70
  6. Step 6: Final answer
    x = 333,504.91

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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.