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Finding the Fourth Proportional to 605,803.29, 908,812.95 and 201,019.78

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Solution

The fourth proportional to 605,803.29, 908,812.95 and 201,019.78 is: 301,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,803.29 : 908,812.95 = 201,019.78 : x
  2. Step 2: Convert to fraction form
    605,803.29/908,812.95 = 201,019.78/x
  3. Step 3: Cross multiply
    605,803.29x = 908,812.95 × 201,019.78
  4. Step 4: Simplify right side
    605,803.29x = 182,689,379,270.15
  5. Step 5: Solve for x
    x = 182,689,379,270.15/605,803.29
  6. Step 6: Final answer
    x = 301,565.51

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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.