Home / 2,781,418.80-4,167,289.80-1,282,436.40

Finding the Fourth Proportional to 2,781,418.80, 4,167,289.80 and 1,282,436.40

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Solution

The fourth proportional to 2,781,418.80, 4,167,289.80 and 1,282,436.40 is: 1,921,423.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,418.80 : 4,167,289.80 = 1,282,436.40 : x
  2. Step 2: Convert to fraction form
    2,781,418.80/4,167,289.80 = 1,282,436.40/x
  3. Step 3: Cross multiply
    2,781,418.80x = 4,167,289.80 × 1,282,436.40
  4. Step 4: Simplify right side
    2,781,418.80x = 5,344,284,128,868.72
  5. Step 5: Solve for x
    x = 5,344,284,128,868.72/2,781,418.80
  6. Step 6: Final answer
    x = 1,921,423.75

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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.