Home / 813,711.42-1,220,400.33-308,097.96

Finding the Fourth Proportional to 813,711.42, 1,220,400.33 and 308,097.96

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Solution

The fourth proportional to 813,711.42, 1,220,400.33 and 308,097.96 is: 462,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,711.42 : 1,220,400.33 = 308,097.96 : x
  2. Step 2: Convert to fraction form
    813,711.42/1,220,400.33 = 308,097.96/x
  3. Step 3: Cross multiply
    813,711.42x = 1,220,400.33 × 308,097.96
  4. Step 4: Simplify right side
    813,711.42x = 376,002,852,056.33
  5. Step 5: Solve for x
    x = 376,002,852,056.33/813,711.42
  6. Step 6: Final answer
    x = 462,083.78

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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.