Home / 2,780,439.60-4,165,410.60-1,427,998.80

Finding the Fourth Proportional to 2,780,439.60, 4,165,410.60 and 1,427,998.80

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Solution

The fourth proportional to 2,780,439.60, 4,165,410.60 and 1,427,998.80 is: 2,139,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,439.60 : 4,165,410.60 = 1,427,998.80 : x
  2. Step 2: Convert to fraction form
    2,780,439.60/4,165,410.60 = 1,427,998.80/x
  3. Step 3: Cross multiply
    2,780,439.60x = 4,165,410.60 × 1,427,998.80
  4. Step 4: Simplify right side
    2,780,439.60x = 5,948,201,338,307.28
  5. Step 5: Solve for x
    x = 5,948,201,338,307.28/2,780,439.60
  6. Step 6: Final answer
    x = 2,139,302.48

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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.