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Finding the Fourth Proportional to 647,459.80, 970,844.10 and 273,059.80

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Solution

The fourth proportional to 647,459.80, 970,844.10 and 273,059.80 is: 409,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,459.80 : 970,844.10 = 273,059.80 : x
  2. Step 2: Convert to fraction form
    647,459.80/970,844.10 = 273,059.80/x
  3. Step 3: Cross multiply
    647,459.80x = 970,844.10 × 273,059.80
  4. Step 4: Simplify right side
    647,459.80x = 265,098,495,777.18
  5. Step 5: Solve for x
    x = 265,098,495,777.18/647,459.80
  6. Step 6: Final answer
    x = 409,443.95

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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.