Home / 813,019.60-1,219,529.40-252,110.80

Finding the Fourth Proportional to 813,019.60, 1,219,529.40 and 252,110.80

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Solution

The fourth proportional to 813,019.60, 1,219,529.40 and 252,110.80 is: 378,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,019.60 : 1,219,529.40 = 252,110.80 : x
  2. Step 2: Convert to fraction form
    813,019.60/1,219,529.40 = 252,110.80/x
  3. Step 3: Cross multiply
    813,019.60x = 1,219,529.40 × 252,110.80
  4. Step 4: Simplify right side
    813,019.60x = 307,456,532,657.52
  5. Step 5: Solve for x
    x = 307,456,532,657.52/813,019.60
  6. Step 6: Final answer
    x = 378,166.20

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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.