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Finding the Fourth Proportional to 607.34, 838.23 and 496.60

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Solution

The fourth proportional to 607.34, 838.23 and 496.60 is: 685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.34 : 838.23 = 496.60 : x
  2. Step 2: Convert to fraction form
    607.34/838.23 = 496.60/x
  3. Step 3: Cross multiply
    607.34x = 838.23 × 496.60
  4. Step 4: Simplify right side
    607.34x = 416,265.02
  5. Step 5: Solve for x
    x = 416,265.02/607.34
  6. Step 6: Final answer
    x = 685.39

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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.