Home / 1,178.19-1,765.83-527.58

Finding the Fourth Proportional to 1,178.19, 1,765.83 and 527.58

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Solution

The fourth proportional to 1,178.19, 1,765.83 and 527.58 is: 790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.19 : 1,765.83 = 527.58 : x
  2. Step 2: Convert to fraction form
    1,178.19/1,765.83 = 527.58/x
  3. Step 3: Cross multiply
    1,178.19x = 1,765.83 × 527.58
  4. Step 4: Simplify right side
    1,178.19x = 931,616.59
  5. Step 5: Solve for x
    x = 931,616.59/1,178.19
  6. Step 6: Final answer
    x = 790.72

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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.