Home / 3,138,520.60-4,707,780.90-2,949,563.80

Finding the Fourth Proportional to 3,138,520.60, 4,707,780.90 and 2,949,563.80

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Solution

The fourth proportional to 3,138,520.60, 4,707,780.90 and 2,949,563.80 is: 4,424,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,520.60 : 4,707,780.90 = 2,949,563.80 : x
  2. Step 2: Convert to fraction form
    3,138,520.60/4,707,780.90 = 2,949,563.80/x
  3. Step 3: Cross multiply
    3,138,520.60x = 4,707,780.90 × 2,949,563.80
  4. Step 4: Simplify right side
    3,138,520.60x = 13,885,900,120,971.42
  5. Step 5: Solve for x
    x = 13,885,900,120,971.42/3,138,520.60
  6. Step 6: Final answer
    x = 4,424,345.70

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1.5x scale

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.