Home / 871,565.72-1,202,881.76-489,621.56

Finding the Fourth Proportional to 871,565.72, 1,202,881.76 and 489,621.56

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Solution

The fourth proportional to 871,565.72, 1,202,881.76 and 489,621.56 is: 675,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,565.72 : 1,202,881.76 = 489,621.56 : x
  2. Step 2: Convert to fraction form
    871,565.72/1,202,881.76 = 489,621.56/x
  3. Step 3: Cross multiply
    871,565.72x = 1,202,881.76 × 489,621.56
  4. Step 4: Simplify right side
    871,565.72x = 588,956,843,826.75
  5. Step 5: Solve for x
    x = 588,956,843,826.75/871,565.72
  6. Step 6: Final answer
    x = 675,745.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.