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Finding the Fourth Proportional to 536,652.80, 804,979.20 and 287,820.80

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Solution

The fourth proportional to 536,652.80, 804,979.20 and 287,820.80 is: 431,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,652.80 : 804,979.20 = 287,820.80 : x
  2. Step 2: Convert to fraction form
    536,652.80/804,979.20 = 287,820.80/x
  3. Step 3: Cross multiply
    536,652.80x = 804,979.20 × 287,820.80
  4. Step 4: Simplify right side
    536,652.80x = 231,689,757,327.36
  5. Step 5: Solve for x
    x = 231,689,757,327.36/536,652.80
  6. Step 6: Final answer
    x = 431,731.20

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Similar ratio
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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.