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Finding the Fourth Proportional to 576,561.98, 864,846.04 and 378,138.90

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Solution

The fourth proportional to 576,561.98, 864,846.04 and 378,138.90 is: 567,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,561.98 : 864,846.04 = 378,138.90 : x
  2. Step 2: Convert to fraction form
    576,561.98/864,846.04 = 378,138.90/x
  3. Step 3: Cross multiply
    576,561.98x = 864,846.04 × 378,138.90
  4. Step 4: Simplify right side
    576,561.98x = 327,031,930,234.96
  5. Step 5: Solve for x
    x = 327,031,930,234.96/576,561.98
  6. Step 6: Final answer
    x = 567,210.36

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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.