Home / 2,143,652.72-3,213,033.05-863,440.79

Finding the Fourth Proportional to 2,143,652.72, 3,213,033.05 and 863,440.79

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Solution

The fourth proportional to 2,143,652.72, 3,213,033.05 and 863,440.79 is: 1,294,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,652.72 : 3,213,033.05 = 863,440.79 : x
  2. Step 2: Convert to fraction form
    2,143,652.72/3,213,033.05 = 863,440.79/x
  3. Step 3: Cross multiply
    2,143,652.72x = 3,213,033.05 × 863,440.79
  4. Step 4: Simplify right side
    2,143,652.72x = 2,774,263,781,081.55
  5. Step 5: Solve for x
    x = 2,774,263,781,081.55/2,143,652.72
  6. Step 6: Final answer
    x = 1,294,175.95

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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.