Home / 820,351.18-1,230,121.40-251,595.90

Finding the Fourth Proportional to 820,351.18, 1,230,121.40 and 251,595.90

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Solution

The fourth proportional to 820,351.18, 1,230,121.40 and 251,595.90 is: 377,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,351.18 : 1,230,121.40 = 251,595.90 : x
  2. Step 2: Convert to fraction form
    820,351.18/1,230,121.40 = 251,595.90/x
  3. Step 3: Cross multiply
    820,351.18x = 1,230,121.40 × 251,595.90
  4. Step 4: Simplify right side
    820,351.18x = 309,493,500,742.26
  5. Step 5: Solve for x
    x = 309,493,500,742.26/820,351.18
  6. Step 6: Final answer
    x = 377,269.53

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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.