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Finding the Fourth Proportional to 900.52, 1,241.94 and 703.69

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Solution

The fourth proportional to 900.52, 1,241.94 and 703.69 is: 970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.52 : 1,241.94 = 703.69 : x
  2. Step 2: Convert to fraction form
    900.52/1,241.94 = 703.69/x
  3. Step 3: Cross multiply
    900.52x = 1,241.94 × 703.69
  4. Step 4: Simplify right side
    900.52x = 873,940.76
  5. Step 5: Solve for x
    x = 873,940.76/900.52
  6. Step 6: Final answer
    x = 970.48

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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.