Home / 2,781,403.30-4,167,266.55-1,282,420.90

Finding the Fourth Proportional to 2,781,403.30, 4,167,266.55 and 1,282,420.90

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Solution

The fourth proportional to 2,781,403.30, 4,167,266.55 and 1,282,420.90 is: 1,921,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,403.30 : 4,167,266.55 = 1,282,420.90 : x
  2. Step 2: Convert to fraction form
    2,781,403.30/4,167,266.55 = 1,282,420.90/x
  3. Step 3: Cross multiply
    2,781,403.30x = 4,167,266.55 × 1,282,420.90
  4. Step 4: Simplify right side
    2,781,403.30x = 5,344,189,719,590.89
  5. Step 5: Solve for x
    x = 5,344,189,719,590.89/2,781,403.30
  6. Step 6: Final answer
    x = 1,921,400.51

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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.