Home / 3,919,340.36-5,876,722.40-1,520,381.79

Finding the Fourth Proportional to 3,919,340.36, 5,876,722.40 and 1,520,381.79

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Solution

The fourth proportional to 3,919,340.36, 5,876,722.40 and 1,520,381.79 is: 2,279,685.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,340.36 : 5,876,722.40 = 1,520,381.79 : x
  2. Step 2: Convert to fraction form
    3,919,340.36/5,876,722.40 = 1,520,381.79/x
  3. Step 3: Cross multiply
    3,919,340.36x = 5,876,722.40 × 1,520,381.79
  4. Step 4: Simplify right side
    3,919,340.36x = 8,934,861,714,243.19
  5. Step 5: Solve for x
    x = 8,934,861,714,243.19/3,919,340.36
  6. Step 6: Final answer
    x = 2,279,685.07

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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.