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Finding the Fourth Proportional to 965.49, 1,448.24 and 527.18

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Solution

The fourth proportional to 965.49, 1,448.24 and 527.18 is: 790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.49 : 1,448.24 = 527.18 : x
  2. Step 2: Convert to fraction form
    965.49/1,448.24 = 527.18/x
  3. Step 3: Cross multiply
    965.49x = 1,448.24 × 527.18
  4. Step 4: Simplify right side
    965.49x = 763,478.72
  5. Step 5: Solve for x
    x = 763,478.72/965.49
  6. Step 6: Final answer
    x = 790.77

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.