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Finding the Fourth Proportional to 605,884.05, 908,547.84 and 206,362.28

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Solution

The fourth proportional to 605,884.05, 908,547.84 and 206,362.28 is: 309,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,884.05 : 908,547.84 = 206,362.28 : x
  2. Step 2: Convert to fraction form
    605,884.05/908,547.84 = 206,362.28/x
  3. Step 3: Cross multiply
    605,884.05x = 908,547.84 × 206,362.28
  4. Step 4: Simplify right side
    605,884.05x = 187,490,006,022.85
  5. Step 5: Solve for x
    x = 187,490,006,022.85/605,884.05
  6. Step 6: Final answer
    x = 309,448.66

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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.