Home / 1,280,355.25-1,918,877.22-957,977.78

Finding the Fourth Proportional to 1,280,355.25, 1,918,877.22 and 957,977.78

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Solution

The fourth proportional to 1,280,355.25, 1,918,877.22 and 957,977.78 is: 1,435,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,355.25 : 1,918,877.22 = 957,977.78 : x
  2. Step 2: Convert to fraction form
    1,280,355.25/1,918,877.22 = 957,977.78/x
  3. Step 3: Cross multiply
    1,280,355.25x = 1,918,877.22 × 957,977.78
  4. Step 4: Simplify right side
    1,280,355.25x = 1,838,241,729,713.79
  5. Step 5: Solve for x
    x = 1,838,241,729,713.79/1,280,355.25
  6. Step 6: Final answer
    x = 1,435,727.88

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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.