Home / 1,178.24-1,767.90-528.62

Finding the Fourth Proportional to 1,178.24, 1,767.90 and 528.62

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Solution

The fourth proportional to 1,178.24, 1,767.90 and 528.62 is: 793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.24 : 1,767.90 = 528.62 : x
  2. Step 2: Convert to fraction form
    1,178.24/1,767.90 = 528.62/x
  3. Step 3: Cross multiply
    1,178.24x = 1,767.90 × 528.62
  4. Step 4: Simplify right side
    1,178.24x = 934,547.30
  5. Step 5: Solve for x
    x = 934,547.30/1,178.24
  6. Step 6: Final answer
    x = 793.17

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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.