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Finding the Fourth Proportional to 677.59, 933.01 and 615.04

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Solution

The fourth proportional to 677.59, 933.01 and 615.04 is: 846.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.59 : 933.01 = 615.04 : x
  2. Step 2: Convert to fraction form
    677.59/933.01 = 615.04/x
  3. Step 3: Cross multiply
    677.59x = 933.01 × 615.04
  4. Step 4: Simplify right side
    677.59x = 573,834.60
  5. Step 5: Solve for x
    x = 573,834.60/677.59
  6. Step 6: Final answer
    x = 846.88

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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.