Home / 842,472.20-1,263,708.30-422,568.20

Finding the Fourth Proportional to 842,472.20, 1,263,708.30 and 422,568.20

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Solution

The fourth proportional to 842,472.20, 1,263,708.30 and 422,568.20 is: 633,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,472.20 : 1,263,708.30 = 422,568.20 : x
  2. Step 2: Convert to fraction form
    842,472.20/1,263,708.30 = 422,568.20/x
  3. Step 3: Cross multiply
    842,472.20x = 1,263,708.30 × 422,568.20
  4. Step 4: Simplify right side
    842,472.20x = 534,002,941,656.06
  5. Step 5: Solve for x
    x = 534,002,941,656.06/842,472.20
  6. Step 6: Final answer
    x = 633,852.30

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Double scale
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Similar ratio
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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.