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Finding the Fourth Proportional to 1,064.54, 1,595.70 and 448.60

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Solution

The fourth proportional to 1,064.54, 1,595.70 and 448.60 is: 672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.54 : 1,595.70 = 448.60 : x
  2. Step 2: Convert to fraction form
    1,064.54/1,595.70 = 448.60/x
  3. Step 3: Cross multiply
    1,064.54x = 1,595.70 × 448.60
  4. Step 4: Simplify right side
    1,064.54x = 715,831.02
  5. Step 5: Solve for x
    x = 715,831.02/1,064.54
  6. Step 6: Final answer
    x = 672.43

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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.