Home / 897,255.38-1,238,178.20-494,847.38

Finding the Fourth Proportional to 897,255.38, 1,238,178.20 and 494,847.38

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Solution

The fourth proportional to 897,255.38, 1,238,178.20 and 494,847.38 is: 682,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,255.38 : 1,238,178.20 = 494,847.38 : x
  2. Step 2: Convert to fraction form
    897,255.38/1,238,178.20 = 494,847.38/x
  3. Step 3: Cross multiply
    897,255.38x = 1,238,178.20 × 494,847.38
  4. Step 4: Simplify right side
    897,255.38x = 612,709,238,243.12
  5. Step 5: Solve for x
    x = 612,709,238,243.12/897,255.38
  6. Step 6: Final answer
    x = 682,870.51

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1.5x scale

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.