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Finding the Fourth Proportional to 806,908.77, 1,210,450.77 and 301,711.77

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Solution

The fourth proportional to 806,908.77, 1,210,450.77 and 301,711.77 is: 452,600.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,908.77 : 1,210,450.77 = 301,711.77 : x
  2. Step 2: Convert to fraction form
    806,908.77/1,210,450.77 = 301,711.77/x
  3. Step 3: Cross multiply
    806,908.77x = 1,210,450.77 × 301,711.77
  4. Step 4: Simplify right side
    806,908.77x = 365,207,244,314.56
  5. Step 5: Solve for x
    x = 365,207,244,314.56/806,908.77
  6. Step 6: Final answer
    x = 452,600.42

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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.