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Finding the Fourth Proportional to 1,234.76, 1,703.97 and 675.23

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Solution

The fourth proportional to 1,234.76, 1,703.97 and 675.23 is: 931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.76 : 1,703.97 = 675.23 : x
  2. Step 2: Convert to fraction form
    1,234.76/1,703.97 = 675.23/x
  3. Step 3: Cross multiply
    1,234.76x = 1,703.97 × 675.23
  4. Step 4: Simplify right side
    1,234.76x = 1,150,568.29
  5. Step 5: Solve for x
    x = 1,150,568.29/1,234.76
  6. Step 6: Final answer
    x = 931.82

Related Problems

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Half scale
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Double scale
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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.