Home / 1,179.53-1,769.36-438.98

Finding the Fourth Proportional to 1,179.53, 1,769.36 and 438.98

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Solution

The fourth proportional to 1,179.53, 1,769.36 and 438.98 is: 658.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.53 : 1,769.36 = 438.98 : x
  2. Step 2: Convert to fraction form
    1,179.53/1,769.36 = 438.98/x
  3. Step 3: Cross multiply
    1,179.53x = 1,769.36 × 438.98
  4. Step 4: Simplify right side
    1,179.53x = 776,713.65
  5. Step 5: Solve for x
    x = 776,713.65/1,179.53
  6. Step 6: Final answer
    x = 658.49

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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.