Home / 2,138,478.60-3,207,722.04-519,240.64

Finding the Fourth Proportional to 2,138,478.60, 3,207,722.04 and 519,240.64

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Solution

The fourth proportional to 2,138,478.60, 3,207,722.04 and 519,240.64 is: 778,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,478.60 : 3,207,722.04 = 519,240.64 : x
  2. Step 2: Convert to fraction form
    2,138,478.60/3,207,722.04 = 519,240.64/x
  3. Step 3: Cross multiply
    2,138,478.60x = 3,207,722.04 × 519,240.64
  4. Step 4: Simplify right side
    2,138,478.60x = 1,665,579,644,991.71
  5. Step 5: Solve for x
    x = 1,665,579,644,991.71/2,138,478.60
  6. Step 6: Final answer
    x = 778,861.97

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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.