Home / 871,464.72-1,202,742.36-489,520.56

Finding the Fourth Proportional to 871,464.72, 1,202,742.36 and 489,520.56

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Solution

The fourth proportional to 871,464.72, 1,202,742.36 and 489,520.56 is: 675,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,464.72 : 1,202,742.36 = 489,520.56 : x
  2. Step 2: Convert to fraction form
    871,464.72/1,202,742.36 = 489,520.56/x
  3. Step 3: Cross multiply
    871,464.72x = 1,202,742.36 × 489,520.56
  4. Step 4: Simplify right side
    871,464.72x = 588,767,113,602.92
  5. Step 5: Solve for x
    x = 588,767,113,602.92/871,464.72
  6. Step 6: Final answer
    x = 675,606.37

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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.