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Finding the Fourth Proportional to 800,507.10, 1,201,174.56 and 351,543.54

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Solution

The fourth proportional to 800,507.10, 1,201,174.56 and 351,543.54 is: 527,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,507.10 : 1,201,174.56 = 351,543.54 : x
  2. Step 2: Convert to fraction form
    800,507.10/1,201,174.56 = 351,543.54/x
  3. Step 3: Cross multiply
    800,507.10x = 1,201,174.56 × 351,543.54
  4. Step 4: Simplify right side
    800,507.10x = 422,265,156,980.34
  5. Step 5: Solve for x
    x = 422,265,156,980.34/800,507.10
  6. Step 6: Final answer
    x = 527,497.08

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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.