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Finding the Fourth Proportional to 1,329.39, 1,994.75 and 598.81

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Solution

The fourth proportional to 1,329.39, 1,994.75 and 598.81 is: 898.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.39 : 1,994.75 = 598.81 : x
  2. Step 2: Convert to fraction form
    1,329.39/1,994.75 = 598.81/x
  3. Step 3: Cross multiply
    1,329.39x = 1,994.75 × 598.81
  4. Step 4: Simplify right side
    1,329.39x = 1,194,476.25
  5. Step 5: Solve for x
    x = 1,194,476.25/1,329.39
  6. Step 6: Final answer
    x = 898.51

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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.