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Finding the Fourth Proportional to 926.54, 1,278.28 and 533.36

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Solution

The fourth proportional to 926.54, 1,278.28 and 533.36 is: 735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.54 : 1,278.28 = 533.36 : x
  2. Step 2: Convert to fraction form
    926.54/1,278.28 = 533.36/x
  3. Step 3: Cross multiply
    926.54x = 1,278.28 × 533.36
  4. Step 4: Simplify right side
    926.54x = 681,783.42
  5. Step 5: Solve for x
    x = 681,783.42/926.54
  6. Step 6: Final answer
    x = 735.84

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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.