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Finding the Fourth Proportional to 1,049.53, 1,448.18 and 607.47

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Solution

The fourth proportional to 1,049.53, 1,448.18 and 607.47 is: 838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.53 : 1,448.18 = 607.47 : x
  2. Step 2: Convert to fraction form
    1,049.53/1,448.18 = 607.47/x
  3. Step 3: Cross multiply
    1,049.53x = 1,448.18 × 607.47
  4. Step 4: Simplify right side
    1,049.53x = 879,725.90
  5. Step 5: Solve for x
    x = 879,725.90/1,049.53
  6. Step 6: Final answer
    x = 838.21

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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.