Home / 1,078.18-1,487.47-605.97

Finding the Fourth Proportional to 1,078.18, 1,487.47 and 605.97

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Solution

The fourth proportional to 1,078.18, 1,487.47 and 605.97 is: 836.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078.18 : 1,487.47 = 605.97 : x
  2. Step 2: Convert to fraction form
    1,078.18/1,487.47 = 605.97/x
  3. Step 3: Cross multiply
    1,078.18x = 1,487.47 × 605.97
  4. Step 4: Simplify right side
    1,078.18x = 901,366.14
  5. Step 5: Solve for x
    x = 901,366.14/1,078.18
  6. Step 6: Final answer
    x = 836.00

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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.