Home / 739,254.63-1,108,714.71-339,511.13

Finding the Fourth Proportional to 739,254.63, 1,108,714.71 and 339,511.13

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Solution

The fourth proportional to 739,254.63, 1,108,714.71 and 339,511.13 is: 509,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,254.63 : 1,108,714.71 = 339,511.13 : x
  2. Step 2: Convert to fraction form
    739,254.63/1,108,714.71 = 339,511.13/x
  3. Step 3: Cross multiply
    739,254.63x = 1,108,714.71 × 339,511.13
  4. Step 4: Simplify right side
    739,254.63x = 376,420,978,496.15
  5. Step 5: Solve for x
    x = 376,420,978,496.15/739,254.63
  6. Step 6: Final answer
    x = 509,189.88

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Double scale
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Similar ratio
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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.