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Finding the Fourth Proportional to 701.70, 968.76 and 623.85

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Solution

The fourth proportional to 701.70, 968.76 and 623.85 is: 861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.70 : 968.76 = 623.85 : x
  2. Step 2: Convert to fraction form
    701.70/968.76 = 623.85/x
  3. Step 3: Cross multiply
    701.70x = 968.76 × 623.85
  4. Step 4: Simplify right side
    701.70x = 604,363.71
  5. Step 5: Solve for x
    x = 604,363.71/701.70
  6. Step 6: Final answer
    x = 861.29

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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.