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Finding the Fourth Proportional to 1,604.55, 2,407.22 and 493.93

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Solution

The fourth proportional to 1,604.55, 2,407.22 and 493.93 is: 741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.55 : 2,407.22 = 493.93 : x
  2. Step 2: Convert to fraction form
    1,604.55/2,407.22 = 493.93/x
  3. Step 3: Cross multiply
    1,604.55x = 2,407.22 × 493.93
  4. Step 4: Simplify right side
    1,604.55x = 1,188,998.17
  5. Step 5: Solve for x
    x = 1,188,998.17/1,604.55
  6. Step 6: Final answer
    x = 741.02

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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.