Home / 481,304.13-664,374.66-280,100.13

Finding the Fourth Proportional to 481,304.13, 664,374.66 and 280,100.13

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Solution

The fourth proportional to 481,304.13, 664,374.66 and 280,100.13 is: 386,640.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,304.13 : 664,374.66 = 280,100.13 : x
  2. Step 2: Convert to fraction form
    481,304.13/664,374.66 = 280,100.13/x
  3. Step 3: Cross multiply
    481,304.13x = 664,374.66 × 280,100.13
  4. Step 4: Simplify right side
    481,304.13x = 186,091,428,634.71
  5. Step 5: Solve for x
    x = 186,091,428,634.71/481,304.13
  6. Step 6: Final answer
    x = 386,640.00

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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.