Home / 2,811,806.40-4,217,709.60-2,059,780.80

Finding the Fourth Proportional to 2,811,806.40, 4,217,709.60 and 2,059,780.80

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Solution

The fourth proportional to 2,811,806.40, 4,217,709.60 and 2,059,780.80 is: 3,089,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,806.40 : 4,217,709.60 = 2,059,780.80 : x
  2. Step 2: Convert to fraction form
    2,811,806.40/4,217,709.60 = 2,059,780.80/x
  3. Step 3: Cross multiply
    2,811,806.40x = 4,217,709.60 × 2,059,780.80
  4. Step 4: Simplify right side
    2,811,806.40x = 8,687,557,254,055.68
  5. Step 5: Solve for x
    x = 8,687,557,254,055.68/2,811,806.40
  6. Step 6: Final answer
    x = 3,089,671.20

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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.