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Finding the Fourth Proportional to 680.27, 1,018.58 and 593.19

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Solution

The fourth proportional to 680.27, 1,018.58 and 593.19 is: 888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680.27 : 1,018.58 = 593.19 : x
  2. Step 2: Convert to fraction form
    680.27/1,018.58 = 593.19/x
  3. Step 3: Cross multiply
    680.27x = 1,018.58 × 593.19
  4. Step 4: Simplify right side
    680.27x = 604,208.50
  5. Step 5: Solve for x
    x = 604,208.50/680.27
  6. Step 6: Final answer
    x = 888.20

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1.5x scale

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.