Home / 813,569.60-1,220,341.32-252,604.64

Finding the Fourth Proportional to 813,569.60, 1,220,341.32 and 252,604.64

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Solution

The fourth proportional to 813,569.60, 1,220,341.32 and 252,604.64 is: 378,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,569.60 : 1,220,341.32 = 252,604.64 : x
  2. Step 2: Convert to fraction form
    813,569.60/1,220,341.32 = 252,604.64/x
  3. Step 3: Cross multiply
    813,569.60x = 1,220,341.32 × 252,604.64
  4. Step 4: Simplify right side
    813,569.60x = 308,263,879,815.73
  5. Step 5: Solve for x
    x = 308,263,879,815.73/813,569.60
  6. Step 6: Final answer
    x = 378,902.90

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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.