Home / 821,083.40-1,231,625.10-504,513.80

Finding the Fourth Proportional to 821,083.40, 1,231,625.10 and 504,513.80

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Solution

The fourth proportional to 821,083.40, 1,231,625.10 and 504,513.80 is: 756,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,083.40 : 1,231,625.10 = 504,513.80 : x
  2. Step 2: Convert to fraction form
    821,083.40/1,231,625.10 = 504,513.80/x
  3. Step 3: Cross multiply
    821,083.40x = 1,231,625.10 × 504,513.80
  4. Step 4: Simplify right side
    821,083.40x = 621,371,859,376.38
  5. Step 5: Solve for x
    x = 621,371,859,376.38/821,083.40
  6. Step 6: Final answer
    x = 756,770.70

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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.