Home / 871,061.62-1,307,020.04-391,627.71

Finding the Fourth Proportional to 871,061.62, 1,307,020.04 and 391,627.71

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Solution

The fourth proportional to 871,061.62, 1,307,020.04 and 391,627.71 is: 587,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,061.62 : 1,307,020.04 = 391,627.71 : x
  2. Step 2: Convert to fraction form
    871,061.62/1,307,020.04 = 391,627.71/x
  3. Step 3: Cross multiply
    871,061.62x = 1,307,020.04 × 391,627.71
  4. Step 4: Simplify right side
    871,061.62x = 511,865,265,189.31
  5. Step 5: Solve for x
    x = 511,865,265,189.31/871,061.62
  6. Step 6: Final answer
    x = 587,633.82

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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.