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Finding the Fourth Proportional to 1,064.78, 1,596.18 and 602.90

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Solution

The fourth proportional to 1,064.78, 1,596.18 and 602.90 is: 903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.78 : 1,596.18 = 602.90 : x
  2. Step 2: Convert to fraction form
    1,064.78/1,596.18 = 602.90/x
  3. Step 3: Cross multiply
    1,064.78x = 1,596.18 × 602.90
  4. Step 4: Simplify right side
    1,064.78x = 962,336.92
  5. Step 5: Solve for x
    x = 962,336.92/1,064.78
  6. Step 6: Final answer
    x = 903.79

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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.