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Finding the Fourth Proportional to 612,059.17, 844,662.13 and 340,138.53

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Solution

The fourth proportional to 612,059.17, 844,662.13 and 340,138.53 is: 469,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,059.17 : 844,662.13 = 340,138.53 : x
  2. Step 2: Convert to fraction form
    612,059.17/844,662.13 = 340,138.53/x
  3. Step 3: Cross multiply
    612,059.17x = 844,662.13 × 340,138.53
  4. Step 4: Simplify right side
    612,059.17x = 287,302,135,359.15
  5. Step 5: Solve for x
    x = 287,302,135,359.15/612,059.17
  6. Step 6: Final answer
    x = 469,402.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.