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Finding the Fourth Proportional to 739.66, 1,108.48 and 556.84

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Solution

The fourth proportional to 739.66, 1,108.48 and 556.84 is: 834.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.66 : 1,108.48 = 556.84 : x
  2. Step 2: Convert to fraction form
    739.66/1,108.48 = 556.84/x
  3. Step 3: Cross multiply
    739.66x = 1,108.48 × 556.84
  4. Step 4: Simplify right side
    739.66x = 617,246.00
  5. Step 5: Solve for x
    x = 617,246.00/739.66
  6. Step 6: Final answer
    x = 834.50

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Double scale
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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.