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Finding the Fourth Proportional to 1,046.70, 1,569.63 and 353.26

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Solution

The fourth proportional to 1,046.70, 1,569.63 and 353.26 is: 529.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.70 : 1,569.63 = 353.26 : x
  2. Step 2: Convert to fraction form
    1,046.70/1,569.63 = 353.26/x
  3. Step 3: Cross multiply
    1,046.70x = 1,569.63 × 353.26
  4. Step 4: Simplify right side
    1,046.70x = 554,487.49
  5. Step 5: Solve for x
    x = 554,487.49/1,046.70
  6. Step 6: Final answer
    x = 529.75

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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.