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Finding the Fourth Proportional to 602.16, 903.60 and 458.76

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Solution

The fourth proportional to 602.16, 903.60 and 458.76 is: 688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.16 : 903.60 = 458.76 : x
  2. Step 2: Convert to fraction form
    602.16/903.60 = 458.76/x
  3. Step 3: Cross multiply
    602.16x = 903.60 × 458.76
  4. Step 4: Simplify right side
    602.16x = 414,535.54
  5. Step 5: Solve for x
    x = 414,535.54/602.16
  6. Step 6: Final answer
    x = 688.41

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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.