Home / 3,112,688.72-4,668,682.40-838,379.58

Finding the Fourth Proportional to 3,112,688.72, 4,668,682.40 and 838,379.58

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Solution

The fourth proportional to 3,112,688.72, 4,668,682.40 and 838,379.58 is: 1,257,474.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112,688.72 : 4,668,682.40 = 838,379.58 : x
  2. Step 2: Convert to fraction form
    3,112,688.72/4,668,682.40 = 838,379.58/x
  3. Step 3: Cross multiply
    3,112,688.72x = 4,668,682.40 × 838,379.58
  4. Step 4: Simplify right side
    3,112,688.72x = 3,914,128,002,087.08
  5. Step 5: Solve for x
    x = 3,914,128,002,087.08/3,112,688.72
  6. Step 6: Final answer
    x = 1,257,474.92

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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.