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Finding the Fourth Proportional to 904.31, 1,248.02 and 550.17

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Solution

The fourth proportional to 904.31, 1,248.02 and 550.17 is: 759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.31 : 1,248.02 = 550.17 : x
  2. Step 2: Convert to fraction form
    904.31/1,248.02 = 550.17/x
  3. Step 3: Cross multiply
    904.31x = 1,248.02 × 550.17
  4. Step 4: Simplify right side
    904.31x = 686,622.48
  5. Step 5: Solve for x
    x = 686,622.48/904.31
  6. Step 6: Final answer
    x = 759.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.