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Finding the Fourth Proportional to 1,049.54, 1,448.55 and 607.48

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Solution

The fourth proportional to 1,049.54, 1,448.55 and 607.48 is: 838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.54 : 1,448.55 = 607.48 : x
  2. Step 2: Convert to fraction form
    1,049.54/1,448.55 = 607.48/x
  3. Step 3: Cross multiply
    1,049.54x = 1,448.55 × 607.48
  4. Step 4: Simplify right side
    1,049.54x = 879,961.53
  5. Step 5: Solve for x
    x = 879,961.53/1,049.54
  6. Step 6: Final answer
    x = 838.43

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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.