Home / 821,726.70-1,232,645.73-253,072.68

Finding the Fourth Proportional to 821,726.70, 1,232,645.73 and 253,072.68

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Solution

The fourth proportional to 821,726.70, 1,232,645.73 and 253,072.68 is: 379,626.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,726.70 : 1,232,645.73 = 253,072.68 : x
  2. Step 2: Convert to fraction form
    821,726.70/1,232,645.73 = 253,072.68/x
  3. Step 3: Cross multiply
    821,726.70x = 1,232,645.73 × 253,072.68
  4. Step 4: Simplify right side
    821,726.70x = 311,948,958,381.66
  5. Step 5: Solve for x
    x = 311,948,958,381.66/821,726.70
  6. Step 6: Final answer
    x = 379,626.17

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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.