Home / 2,140,951.72-3,211,650.30-721,165.48

Finding the Fourth Proportional to 2,140,951.72, 3,211,650.30 and 721,165.48

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Solution

The fourth proportional to 2,140,951.72, 3,211,650.30 and 721,165.48 is: 1,081,823.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,951.72 : 3,211,650.30 = 721,165.48 : x
  2. Step 2: Convert to fraction form
    2,140,951.72/3,211,650.30 = 721,165.48/x
  3. Step 3: Cross multiply
    2,140,951.72x = 3,211,650.30 × 721,165.48
  4. Step 4: Simplify right side
    2,140,951.72x = 2,316,131,330,191.64
  5. Step 5: Solve for x
    x = 2,316,131,330,191.64/2,140,951.72
  6. Step 6: Final answer
    x = 1,081,823.24

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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.