Home / 871,060.76-1,307,018.75-391,626.85

Finding the Fourth Proportional to 871,060.76, 1,307,018.75 and 391,626.85

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Solution

The fourth proportional to 871,060.76, 1,307,018.75 and 391,626.85 is: 587,632.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,060.76 : 1,307,018.75 = 391,626.85 : x
  2. Step 2: Convert to fraction form
    871,060.76/1,307,018.75 = 391,626.85/x
  3. Step 3: Cross multiply
    871,060.76x = 1,307,018.75 × 391,626.85
  4. Step 4: Simplify right side
    871,060.76x = 511,863,637,587.21
  5. Step 5: Solve for x
    x = 511,863,637,587.21/871,060.76
  6. Step 6: Final answer
    x = 587,632.53

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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.