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Finding the Fourth Proportional to 898.31, 1,348.07 and 465.77

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Solution

The fourth proportional to 898.31, 1,348.07 and 465.77 is: 698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.31 : 1,348.07 = 465.77 : x
  2. Step 2: Convert to fraction form
    898.31/1,348.07 = 465.77/x
  3. Step 3: Cross multiply
    898.31x = 1,348.07 × 465.77
  4. Step 4: Simplify right side
    898.31x = 627,881.49
  5. Step 5: Solve for x
    x = 627,881.49/898.31
  6. Step 6: Final answer
    x = 698.96

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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.