Home / 813,010.60-1,219,515.90-252,101.80

Finding the Fourth Proportional to 813,010.60, 1,219,515.90 and 252,101.80

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Solution

The fourth proportional to 813,010.60, 1,219,515.90 and 252,101.80 is: 378,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,010.60 : 1,219,515.90 = 252,101.80 : x
  2. Step 2: Convert to fraction form
    813,010.60/1,219,515.90 = 252,101.80/x
  3. Step 3: Cross multiply
    813,010.60x = 1,219,515.90 × 252,101.80
  4. Step 4: Simplify right side
    813,010.60x = 307,442,153,518.62
  5. Step 5: Solve for x
    x = 307,442,153,518.62/813,010.60
  6. Step 6: Final answer
    x = 378,152.70

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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.