Home / 2,123,336.40-3,184,984.80-860,863.92

Finding the Fourth Proportional to 2,123,336.40, 3,184,984.80 and 860,863.92

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Solution

The fourth proportional to 2,123,336.40, 3,184,984.80 and 860,863.92 is: 1,291,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123,336.40 : 3,184,984.80 = 860,863.92 : x
  2. Step 2: Convert to fraction form
    2,123,336.40/3,184,984.80 = 860,863.92/x
  3. Step 3: Cross multiply
    2,123,336.40x = 3,184,984.80 × 860,863.92
  4. Step 4: Simplify right side
    2,123,336.40x = 2,741,838,500,068.42
  5. Step 5: Solve for x
    x = 2,741,838,500,068.42/2,123,336.40
  6. Step 6: Final answer
    x = 1,291,287.85

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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.