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Finding the Fourth Proportional to 702.76, 969.18 and 545.44

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Solution

The fourth proportional to 702.76, 969.18 and 545.44 is: 752.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.76 : 969.18 = 545.44 : x
  2. Step 2: Convert to fraction form
    702.76/969.18 = 545.44/x
  3. Step 3: Cross multiply
    702.76x = 969.18 × 545.44
  4. Step 4: Simplify right side
    702.76x = 528,629.54
  5. Step 5: Solve for x
    x = 528,629.54/702.76
  6. Step 6: Final answer
    x = 752.22

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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.