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Finding the Fourth Proportional to 836.62, 1,259.83 and 607.12

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Solution

The fourth proportional to 836.62, 1,259.83 and 607.12 is: 914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.62 : 1,259.83 = 607.12 : x
  2. Step 2: Convert to fraction form
    836.62/1,259.83 = 607.12/x
  3. Step 3: Cross multiply
    836.62x = 1,259.83 × 607.12
  4. Step 4: Simplify right side
    836.62x = 764,867.99
  5. Step 5: Solve for x
    x = 764,867.99/836.62
  6. Step 6: Final answer
    x = 914.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.