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Finding the Fourth Proportional to 536,321.70, 739,517.40 and 342,474.51

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Solution

The fourth proportional to 536,321.70, 739,517.40 and 342,474.51 is: 472,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,321.70 : 739,517.40 = 342,474.51 : x
  2. Step 2: Convert to fraction form
    536,321.70/739,517.40 = 342,474.51/x
  3. Step 3: Cross multiply
    536,321.70x = 739,517.40 × 342,474.51
  4. Step 4: Simplify right side
    536,321.70x = 253,265,859,201.47
  5. Step 5: Solve for x
    x = 253,265,859,201.47/536,321.70
  6. Step 6: Final answer
    x = 472,227.51

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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.