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Finding the Fourth Proportional to 618.04, 859.72 and 606.16

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Solution

The fourth proportional to 618.04, 859.72 and 606.16 is: 843.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.04 : 859.72 = 606.16 : x
  2. Step 2: Convert to fraction form
    618.04/859.72 = 606.16/x
  3. Step 3: Cross multiply
    618.04x = 859.72 × 606.16
  4. Step 4: Simplify right side
    618.04x = 521,127.88
  5. Step 5: Solve for x
    x = 521,127.88/618.04
  6. Step 6: Final answer
    x = 843.19

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.