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Finding the Fourth Proportional to 1,330.50, 1,994.26 and 452.19

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Solution

The fourth proportional to 1,330.50, 1,994.26 and 452.19 is: 677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.50 : 1,994.26 = 452.19 : x
  2. Step 2: Convert to fraction form
    1,330.50/1,994.26 = 452.19/x
  3. Step 3: Cross multiply
    1,330.50x = 1,994.26 × 452.19
  4. Step 4: Simplify right side
    1,330.50x = 901,776.07
  5. Step 5: Solve for x
    x = 901,776.07/1,330.50
  6. Step 6: Final answer
    x = 677.77

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.