Home / 1,217,021.80-1,825,532.70-418,232.20

Finding the Fourth Proportional to 1,217,021.80, 1,825,532.70 and 418,232.20

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Solution

The fourth proportional to 1,217,021.80, 1,825,532.70 and 418,232.20 is: 627,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,021.80 : 1,825,532.70 = 418,232.20 : x
  2. Step 2: Convert to fraction form
    1,217,021.80/1,825,532.70 = 418,232.20/x
  3. Step 3: Cross multiply
    1,217,021.80x = 1,825,532.70 × 418,232.20
  4. Step 4: Simplify right side
    1,217,021.80x = 763,496,557,292.94
  5. Step 5: Solve for x
    x = 763,496,557,292.94/1,217,021.80
  6. Step 6: Final answer
    x = 627,348.30

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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.