Home / 891,809.73-1,231,719.48-587,247.57

Finding the Fourth Proportional to 891,809.73, 1,231,719.48 and 587,247.57

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Solution

The fourth proportional to 891,809.73, 1,231,719.48 and 587,247.57 is: 811,074.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,809.73 : 1,231,719.48 = 587,247.57 : x
  2. Step 2: Convert to fraction form
    891,809.73/1,231,719.48 = 587,247.57/x
  3. Step 3: Cross multiply
    891,809.73x = 1,231,719.48 × 587,247.57
  4. Step 4: Simplify right side
    891,809.73x = 723,324,271,551.66
  5. Step 5: Solve for x
    x = 723,324,271,551.66/891,809.73
  6. Step 6: Final answer
    x = 811,074.66

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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.