Home / 1,178.35-1,766.60-528.63

Finding the Fourth Proportional to 1,178.35, 1,766.60 and 528.63

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Solution

The fourth proportional to 1,178.35, 1,766.60 and 528.63 is: 792.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.35 : 1,766.60 = 528.63 : x
  2. Step 2: Convert to fraction form
    1,178.35/1,766.60 = 528.63/x
  3. Step 3: Cross multiply
    1,178.35x = 1,766.60 × 528.63
  4. Step 4: Simplify right side
    1,178.35x = 933,877.76
  5. Step 5: Solve for x
    x = 933,877.76/1,178.35
  6. Step 6: Final answer
    x = 792.53

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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.