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Finding the Fourth Proportional to 699.79, 965.83 and 533.69

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Solution

The fourth proportional to 699.79, 965.83 and 533.69 is: 736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.79 : 965.83 = 533.69 : x
  2. Step 2: Convert to fraction form
    699.79/965.83 = 533.69/x
  3. Step 3: Cross multiply
    699.79x = 965.83 × 533.69
  4. Step 4: Simplify right side
    699.79x = 515,453.81
  5. Step 5: Solve for x
    x = 515,453.81/699.79
  6. Step 6: Final answer
    x = 736.58

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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.