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Finding the Fourth Proportional to 871,005, 1,306,589.94 and 338,567.16

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Solution

The fourth proportional to 871,005, 1,306,589.94 and 338,567.16 is: 507,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,005 : 1,306,589.94 = 338,567.16 : x
  2. Step 2: Convert to fraction form
    871,005/1,306,589.94 = 338,567.16/x
  3. Step 3: Cross multiply
    871,005x = 1,306,589.94 × 338,567.16
  4. Step 4: Simplify right side
    871,005x = 442,368,445,270.37
  5. Step 5: Solve for x
    x = 442,368,445,270.37/871,005
  6. Step 6: Final answer
    x = 507,882.79

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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.