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Finding the Fourth Proportional to 704.17, 971.85 and 529.21

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Solution

The fourth proportional to 704.17, 971.85 and 529.21 is: 730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.17 : 971.85 = 529.21 : x
  2. Step 2: Convert to fraction form
    704.17/971.85 = 529.21/x
  3. Step 3: Cross multiply
    704.17x = 971.85 × 529.21
  4. Step 4: Simplify right side
    704.17x = 514,312.74
  5. Step 5: Solve for x
    x = 514,312.74/704.17
  6. Step 6: Final answer
    x = 730.38

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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.