Home / 871,742.56-1,203,035.52-489,761.68

Finding the Fourth Proportional to 871,742.56, 1,203,035.52 and 489,761.68

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Solution

The fourth proportional to 871,742.56, 1,203,035.52 and 489,761.68 is: 675,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,742.56 : 1,203,035.52 = 489,761.68 : x
  2. Step 2: Convert to fraction form
    871,742.56/1,203,035.52 = 489,761.68/x
  3. Step 3: Cross multiply
    871,742.56x = 1,203,035.52 × 489,761.68
  4. Step 4: Simplify right side
    871,742.56x = 589,200,697,374.87
  5. Step 5: Solve for x
    x = 589,200,697,374.87/871,742.56
  6. Step 6: Final answer
    x = 675,888.42

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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.