Home / 3,412,407.60-5,120,377.80-1,392,132.40

Finding the Fourth Proportional to 3,412,407.60, 5,120,377.80 and 1,392,132.40

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Solution

The fourth proportional to 3,412,407.60, 5,120,377.80 and 1,392,132.40 is: 2,088,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412,407.60 : 5,120,377.80 = 1,392,132.40 : x
  2. Step 2: Convert to fraction form
    3,412,407.60/5,120,377.80 = 1,392,132.40/x
  3. Step 3: Cross multiply
    3,412,407.60x = 5,120,377.80 × 1,392,132.40
  4. Step 4: Simplify right side
    3,412,407.60x = 7,128,243,835,620.72
  5. Step 5: Solve for x
    x = 7,128,243,835,620.72/3,412,407.60
  6. Step 6: Final answer
    x = 2,088,919.22

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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.