Home / 739,186.80-1,108,456.20-339,694.80

Finding the Fourth Proportional to 739,186.80, 1,108,456.20 and 339,694.80

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Solution

The fourth proportional to 739,186.80, 1,108,456.20 and 339,694.80 is: 509,393.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,186.80 : 1,108,456.20 = 339,694.80 : x
  2. Step 2: Convert to fraction form
    739,186.80/1,108,456.20 = 339,694.80/x
  3. Step 3: Cross multiply
    739,186.80x = 1,108,456.20 × 339,694.80
  4. Step 4: Simplify right side
    739,186.80x = 376,536,807,167.76
  5. Step 5: Solve for x
    x = 376,536,807,167.76/739,186.80
  6. Step 6: Final answer
    x = 509,393.31

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Double scale
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1.5x scale

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.