Home / 2,428,311-3,347,953.92-1,991,117.55

Finding the Fourth Proportional to 2,428,311, 3,347,953.92 and 1,991,117.55

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Solution

The fourth proportional to 2,428,311, 3,347,953.92 and 1,991,117.55 is: 2,745,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428,311 : 3,347,953.92 = 1,991,117.55 : x
  2. Step 2: Convert to fraction form
    2,428,311/3,347,953.92 = 1,991,117.55/x
  3. Step 3: Cross multiply
    2,428,311x = 3,347,953.92 × 1,991,117.55
  4. Step 4: Simplify right side
    2,428,311x = 6,666,169,806,703.30
  5. Step 5: Solve for x
    x = 6,666,169,806,703.30/2,428,311
  6. Step 6: Final answer
    x = 2,745,187.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.