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Finding the Fourth Proportional to 806,876.72, 1,210,474.79 and 230,504.97

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Solution

The fourth proportional to 806,876.72, 1,210,474.79 and 230,504.97 is: 345,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,876.72 : 1,210,474.79 = 230,504.97 : x
  2. Step 2: Convert to fraction form
    806,876.72/1,210,474.79 = 230,504.97/x
  3. Step 3: Cross multiply
    806,876.72x = 1,210,474.79 × 230,504.97
  4. Step 4: Simplify right side
    806,876.72x = 279,020,454,002.18
  5. Step 5: Solve for x
    x = 279,020,454,002.18/806,876.72
  6. Step 6: Final answer
    x = 345,803.08

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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.