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Finding the Fourth Proportional to 462.18, 693.93 and 453.98

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Solution

The fourth proportional to 462.18, 693.93 and 453.98 is: 681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.18 : 693.93 = 453.98 : x
  2. Step 2: Convert to fraction form
    462.18/693.93 = 453.98/x
  3. Step 3: Cross multiply
    462.18x = 693.93 × 453.98
  4. Step 4: Simplify right side
    462.18x = 315,030.34
  5. Step 5: Solve for x
    x = 315,030.34/462.18
  6. Step 6: Final answer
    x = 681.62

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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.