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Finding the Fourth Proportional to 605,802.20, 908,703.30 and 290,096.60

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Solution

The fourth proportional to 605,802.20, 908,703.30 and 290,096.60 is: 435,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,802.20 : 908,703.30 = 290,096.60 : x
  2. Step 2: Convert to fraction form
    605,802.20/908,703.30 = 290,096.60/x
  3. Step 3: Cross multiply
    605,802.20x = 908,703.30 × 290,096.60
  4. Step 4: Simplify right side
    605,802.20x = 263,611,737,738.78
  5. Step 5: Solve for x
    x = 263,611,737,738.78/605,802.20
  6. Step 6: Final answer
    x = 435,144.90

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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.