Home / 825,381.36-1,139,228.68-503,268.88

Finding the Fourth Proportional to 825,381.36, 1,139,228.68 and 503,268.88

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Solution

The fourth proportional to 825,381.36, 1,139,228.68 and 503,268.88 is: 694,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,381.36 : 1,139,228.68 = 503,268.88 : x
  2. Step 2: Convert to fraction form
    825,381.36/1,139,228.68 = 503,268.88/x
  3. Step 3: Cross multiply
    825,381.36x = 1,139,228.68 × 503,268.88
  4. Step 4: Simplify right side
    825,381.36x = 573,338,341,847.48
  5. Step 5: Solve for x
    x = 573,338,341,847.48/825,381.36
  6. Step 6: Final answer
    x = 694,634.47

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.