Home / 871,060.62-1,307,018.54-391,626.71

Finding the Fourth Proportional to 871,060.62, 1,307,018.54 and 391,626.71

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Solution

The fourth proportional to 871,060.62, 1,307,018.54 and 391,626.71 is: 587,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,060.62 : 1,307,018.54 = 391,626.71 : x
  2. Step 2: Convert to fraction form
    871,060.62/1,307,018.54 = 391,626.71/x
  3. Step 3: Cross multiply
    871,060.62x = 1,307,018.54 × 391,626.71
  4. Step 4: Simplify right side
    871,060.62x = 511,863,370,729.20
  5. Step 5: Solve for x
    x = 511,863,370,729.20/871,060.62
  6. Step 6: Final answer
    x = 587,632.32

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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.