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Finding the Fourth Proportional to 698.70, 1,048.05 and 333.52

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Solution

The fourth proportional to 698.70, 1,048.05 and 333.52 is: 500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.70 : 1,048.05 = 333.52 : x
  2. Step 2: Convert to fraction form
    698.70/1,048.05 = 333.52/x
  3. Step 3: Cross multiply
    698.70x = 1,048.05 × 333.52
  4. Step 4: Simplify right side
    698.70x = 349,545.64
  5. Step 5: Solve for x
    x = 349,545.64/698.70
  6. Step 6: Final answer
    x = 500.28

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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.