Home / 813,958.04-1,220,770.80-308,344.70

Finding the Fourth Proportional to 813,958.04, 1,220,770.80 and 308,344.70

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Solution

The fourth proportional to 813,958.04, 1,220,770.80 and 308,344.70 is: 462,454.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,958.04 : 1,220,770.80 = 308,344.70 : x
  2. Step 2: Convert to fraction form
    813,958.04/1,220,770.80 = 308,344.70/x
  3. Step 3: Cross multiply
    813,958.04x = 1,220,770.80 × 308,344.70
  4. Step 4: Simplify right side
    813,958.04x = 376,418,199,990.91
  5. Step 5: Solve for x
    x = 376,418,199,990.91/813,958.04
  6. Step 6: Final answer
    x = 462,454.06

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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.