Home / 825,647.40-1,238,471.10-264,738.60

Finding the Fourth Proportional to 825,647.40, 1,238,471.10 and 264,738.60

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Solution

The fourth proportional to 825,647.40, 1,238,471.10 and 264,738.60 is: 397,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,647.40 : 1,238,471.10 = 264,738.60 : x
  2. Step 2: Convert to fraction form
    825,647.40/1,238,471.10 = 264,738.60/x
  3. Step 3: Cross multiply
    825,647.40x = 1,238,471.10 × 264,738.60
  4. Step 4: Simplify right side
    825,647.40x = 327,871,105,154.46
  5. Step 5: Solve for x
    x = 327,871,105,154.46/825,647.40
  6. Step 6: Final answer
    x = 397,107.90

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1.5x scale

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.