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Finding the Fourth Proportional to 956.76, 1,320.34 and 607.44

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Solution

The fourth proportional to 956.76, 1,320.34 and 607.44 is: 838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.76 : 1,320.34 = 607.44 : x
  2. Step 2: Convert to fraction form
    956.76/1,320.34 = 607.44/x
  3. Step 3: Cross multiply
    956.76x = 1,320.34 × 607.44
  4. Step 4: Simplify right side
    956.76x = 802,027.33
  5. Step 5: Solve for x
    x = 802,027.33/956.76
  6. Step 6: Final answer
    x = 838.27

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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.