Home / 813,013.60-1,219,520.40-252,104.80

Finding the Fourth Proportional to 813,013.60, 1,219,520.40 and 252,104.80

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Solution

The fourth proportional to 813,013.60, 1,219,520.40 and 252,104.80 is: 378,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,013.60 : 1,219,520.40 = 252,104.80 : x
  2. Step 2: Convert to fraction form
    813,013.60/1,219,520.40 = 252,104.80/x
  3. Step 3: Cross multiply
    813,013.60x = 1,219,520.40 × 252,104.80
  4. Step 4: Simplify right side
    813,013.60x = 307,446,946,537.92
  5. Step 5: Solve for x
    x = 307,446,946,537.92/813,013.60
  6. Step 6: Final answer
    x = 378,157.20

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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.