Home / 826,072.20-1,239,108.30-265,163.40

Finding the Fourth Proportional to 826,072.20, 1,239,108.30 and 265,163.40

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Solution

The fourth proportional to 826,072.20, 1,239,108.30 and 265,163.40 is: 397,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,072.20 : 1,239,108.30 = 265,163.40 : x
  2. Step 2: Convert to fraction form
    826,072.20/1,239,108.30 = 265,163.40/x
  3. Step 3: Cross multiply
    826,072.20x = 1,239,108.30 × 265,163.40
  4. Step 4: Simplify right side
    826,072.20x = 328,566,169,796.22
  5. Step 5: Solve for x
    x = 328,566,169,796.22/826,072.20
  6. Step 6: Final answer
    x = 397,745.10

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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.