Home / 680,711.35-1,021,175.41-225,319.21

Finding the Fourth Proportional to 680,711.35, 1,021,175.41 and 225,319.21

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Solution

The fourth proportional to 680,711.35, 1,021,175.41 and 225,319.21 is: 338,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,711.35 : 1,021,175.41 = 225,319.21 : x
  2. Step 2: Convert to fraction form
    680,711.35/1,021,175.41 = 225,319.21/x
  3. Step 3: Cross multiply
    680,711.35x = 1,021,175.41 × 225,319.21
  4. Step 4: Simplify right side
    680,711.35x = 230,090,439,143.39
  5. Step 5: Solve for x
    x = 230,090,439,143.39/680,711.35
  6. Step 6: Final answer
    x = 338,014.70

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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.