Home / 825,760.60-1,238,640.90-452,512.60

Finding the Fourth Proportional to 825,760.60, 1,238,640.90 and 452,512.60

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Solution

The fourth proportional to 825,760.60, 1,238,640.90 and 452,512.60 is: 678,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,760.60 : 1,238,640.90 = 452,512.60 : x
  2. Step 2: Convert to fraction form
    825,760.60/1,238,640.90 = 452,512.60/x
  3. Step 3: Cross multiply
    825,760.60x = 1,238,640.90 × 452,512.60
  4. Step 4: Simplify right side
    825,760.60x = 560,500,614,125.34
  5. Step 5: Solve for x
    x = 560,500,614,125.34/825,760.60
  6. Step 6: Final answer
    x = 678,768.90

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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.