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Finding the Fourth Proportional to 658,047.05, 908,105.27 and 356,241.05

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Solution

The fourth proportional to 658,047.05, 908,105.27 and 356,241.05 is: 491,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,047.05 : 908,105.27 = 356,241.05 : x
  2. Step 2: Convert to fraction form
    658,047.05/908,105.27 = 356,241.05/x
  3. Step 3: Cross multiply
    658,047.05x = 908,105.27 × 356,241.05
  4. Step 4: Simplify right side
    658,047.05x = 323,504,373,114.13
  5. Step 5: Solve for x
    x = 323,504,373,114.13/658,047.05
  6. Step 6: Final answer
    x = 491,612.83

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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.