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Finding the Fourth Proportional to 1,143.58, 1,714.07 and 450.12

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Solution

The fourth proportional to 1,143.58, 1,714.07 and 450.12 is: 674.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.58 : 1,714.07 = 450.12 : x
  2. Step 2: Convert to fraction form
    1,143.58/1,714.07 = 450.12/x
  3. Step 3: Cross multiply
    1,143.58x = 1,714.07 × 450.12
  4. Step 4: Simplify right side
    1,143.58x = 771,537.19
  5. Step 5: Solve for x
    x = 771,537.19/1,143.58
  6. Step 6: Final answer
    x = 674.67

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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.