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Finding the Fourth Proportional to 704.30, 970.76 and 529.34

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Solution

The fourth proportional to 704.30, 970.76 and 529.34 is: 729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.30 : 970.76 = 529.34 : x
  2. Step 2: Convert to fraction form
    704.30/970.76 = 529.34/x
  3. Step 3: Cross multiply
    704.30x = 970.76 × 529.34
  4. Step 4: Simplify right side
    704.30x = 513,858.57
  5. Step 5: Solve for x
    x = 513,858.57/704.30
  6. Step 6: Final answer
    x = 729.61

Related Problems

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Half scale
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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.