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Finding the Fourth Proportional to 1,976,906.17, 2,965,424.56 and 680,045.54

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Solution

The fourth proportional to 1,976,906.17, 2,965,424.56 and 680,045.54 is: 1,020,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,906.17 : 2,965,424.56 = 680,045.54 : x
  2. Step 2: Convert to fraction form
    1,976,906.17/2,965,424.56 = 680,045.54/x
  3. Step 3: Cross multiply
    1,976,906.17x = 2,965,424.56 × 680,045.54
  4. Step 4: Simplify right side
    1,976,906.17x = 2,016,623,746,234.46
  5. Step 5: Solve for x
    x = 2,016,623,746,234.46/1,976,906.17
  6. Step 6: Final answer
    x = 1,020,090.77

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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.