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Finding the Fourth Proportional to 605,770.20, 908,655.30 and 290,064.60

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Solution

The fourth proportional to 605,770.20, 908,655.30 and 290,064.60 is: 435,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,770.20 : 908,655.30 = 290,064.60 : x
  2. Step 2: Convert to fraction form
    605,770.20/908,655.30 = 290,064.60/x
  3. Step 3: Cross multiply
    605,770.20x = 908,655.30 × 290,064.60
  4. Step 4: Simplify right side
    605,770.20x = 263,568,736,132.38
  5. Step 5: Solve for x
    x = 263,568,736,132.38/605,770.20
  6. Step 6: Final answer
    x = 435,096.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.