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Finding the Fourth Proportional to 651.41, 968.80 and 634.99

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Solution

The fourth proportional to 651.41, 968.80 and 634.99 is: 944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.41 : 968.80 = 634.99 : x
  2. Step 2: Convert to fraction form
    651.41/968.80 = 634.99/x
  3. Step 3: Cross multiply
    651.41x = 968.80 × 634.99
  4. Step 4: Simplify right side
    651.41x = 615,173.47
  5. Step 5: Solve for x
    x = 615,173.47/651.41
  6. Step 6: Final answer
    x = 944.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.