Home / 810,955.49-1,216,933.52-411,882.66

Finding the Fourth Proportional to 810,955.49, 1,216,933.52 and 411,882.66

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Solution

The fourth proportional to 810,955.49, 1,216,933.52 and 411,882.66 is: 618,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,955.49 : 1,216,933.52 = 411,882.66 : x
  2. Step 2: Convert to fraction form
    810,955.49/1,216,933.52 = 411,882.66/x
  3. Step 3: Cross multiply
    810,955.49x = 1,216,933.52 × 411,882.66
  4. Step 4: Simplify right side
    810,955.49x = 501,233,813,201.35
  5. Step 5: Solve for x
    x = 501,233,813,201.35/810,955.49
  6. Step 6: Final answer
    x = 618,078.09

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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.