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Finding the Fourth Proportional to 618.18, 852.94 and 500.32

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Solution

The fourth proportional to 618.18, 852.94 and 500.32 is: 690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.18 : 852.94 = 500.32 : x
  2. Step 2: Convert to fraction form
    618.18/852.94 = 500.32/x
  3. Step 3: Cross multiply
    618.18x = 852.94 × 500.32
  4. Step 4: Simplify right side
    618.18x = 426,742.94
  5. Step 5: Solve for x
    x = 426,742.94/618.18
  6. Step 6: Final answer
    x = 690.32

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1.5x scale

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.