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Finding the Fourth Proportional to 616.68, 848.84 and 609.84

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Solution

The fourth proportional to 616.68, 848.84 and 609.84 is: 839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.68 : 848.84 = 609.84 : x
  2. Step 2: Convert to fraction form
    616.68/848.84 = 609.84/x
  3. Step 3: Cross multiply
    616.68x = 848.84 × 609.84
  4. Step 4: Simplify right side
    616.68x = 517,653.54
  5. Step 5: Solve for x
    x = 517,653.54/616.68
  6. Step 6: Final answer
    x = 839.42

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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.