Home / 3,438,221.13-5,158,363.01-1,387,826.64

Finding the Fourth Proportional to 3,438,221.13, 5,158,363.01 and 1,387,826.64

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Solution

The fourth proportional to 3,438,221.13, 5,158,363.01 and 1,387,826.64 is: 2,082,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438,221.13 : 5,158,363.01 = 1,387,826.64 : x
  2. Step 2: Convert to fraction form
    3,438,221.13/5,158,363.01 = 1,387,826.64/x
  3. Step 3: Cross multiply
    3,438,221.13x = 5,158,363.01 × 1,387,826.64
  4. Step 4: Simplify right side
    3,438,221.13x = 7,158,913,597,129.45
  5. Step 5: Solve for x
    x = 7,158,913,597,129.45/3,438,221.13
  6. Step 6: Final answer
    x = 2,082,156.24

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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.