Home / 1,520,138.60-2,280,207.90-1,396,135.70

Finding the Fourth Proportional to 1,520,138.60, 2,280,207.90 and 1,396,135.70

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Solution

The fourth proportional to 1,520,138.60, 2,280,207.90 and 1,396,135.70 is: 2,094,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,138.60 : 2,280,207.90 = 1,396,135.70 : x
  2. Step 2: Convert to fraction form
    1,520,138.60/2,280,207.90 = 1,396,135.70/x
  3. Step 3: Cross multiply
    1,520,138.60x = 2,280,207.90 × 1,396,135.70
  4. Step 4: Simplify right side
    1,520,138.60x = 3,183,479,652,612.03
  5. Step 5: Solve for x
    x = 3,183,479,652,612.03/1,520,138.60
  6. Step 6: Final answer
    x = 2,094,203.55

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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.