Home / 813,699.08-1,220,381.62-308,086.04

Finding the Fourth Proportional to 813,699.08, 1,220,381.62 and 308,086.04

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Solution

The fourth proportional to 813,699.08, 1,220,381.62 and 308,086.04 is: 462,065.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,699.08 : 1,220,381.62 = 308,086.04 : x
  2. Step 2: Convert to fraction form
    813,699.08/1,220,381.62 = 308,086.04/x
  3. Step 3: Cross multiply
    813,699.08x = 1,220,381.62 × 308,086.04
  4. Step 4: Simplify right side
    813,699.08x = 375,982,540,594.59
  5. Step 5: Solve for x
    x = 375,982,540,594.59/813,699.08
  6. Step 6: Final answer
    x = 462,065.83

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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.