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Finding the Fourth Proportional to 711.17, 980.47 and 533.37

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Solution

The fourth proportional to 711.17, 980.47 and 533.37 is: 735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    711.17 : 980.47 = 533.37 : x
  2. Step 2: Convert to fraction form
    711.17/980.47 = 533.37/x
  3. Step 3: Cross multiply
    711.17x = 980.47 × 533.37
  4. Step 4: Simplify right side
    711.17x = 522,953.28
  5. Step 5: Solve for x
    x = 522,953.28/711.17
  6. Step 6: Final answer
    x = 735.34

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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.