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Finding the Fourth Proportional to 702.42, 968.91 and 440.39

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Solution

The fourth proportional to 702.42, 968.91 and 440.39 is: 607.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.42 : 968.91 = 440.39 : x
  2. Step 2: Convert to fraction form
    702.42/968.91 = 440.39/x
  3. Step 3: Cross multiply
    702.42x = 968.91 × 440.39
  4. Step 4: Simplify right side
    702.42x = 426,693.43
  5. Step 5: Solve for x
    x = 426,693.43/702.42
  6. Step 6: Final answer
    x = 607.46

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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.