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Finding the Fourth Proportional to 703.40, 968.81 and 610.15

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Solution

The fourth proportional to 703.40, 968.81 and 610.15 is: 840.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.40 : 968.81 = 610.15 : x
  2. Step 2: Convert to fraction form
    703.40/968.81 = 610.15/x
  3. Step 3: Cross multiply
    703.40x = 968.81 × 610.15
  4. Step 4: Simplify right side
    703.40x = 591,111.53
  5. Step 5: Solve for x
    x = 591,111.53/703.40
  6. Step 6: Final answer
    x = 840.36

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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.