Home / 479,780.13-719,919.27-195,679.11

Finding the Fourth Proportional to 479,780.13, 719,919.27 and 195,679.11

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Solution

The fourth proportional to 479,780.13, 719,919.27 and 195,679.11 is: 293,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,780.13 : 719,919.27 = 195,679.11 : x
  2. Step 2: Convert to fraction form
    479,780.13/719,919.27 = 195,679.11/x
  3. Step 3: Cross multiply
    479,780.13x = 719,919.27 × 195,679.11
  4. Step 4: Simplify right side
    479,780.13x = 140,873,161,047.05
  5. Step 5: Solve for x
    x = 140,873,161,047.05/479,780.13
  6. Step 6: Final answer
    x = 293,620.25

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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.