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Finding the Fourth Proportional to 1,218,808.97, 1,828,913.49 and 951,820.01

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Solution

The fourth proportional to 1,218,808.97, 1,828,913.49 and 951,820.01 is: 1,428,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,808.97 : 1,828,913.49 = 951,820.01 : x
  2. Step 2: Convert to fraction form
    1,218,808.97/1,828,913.49 = 951,820.01/x
  3. Step 3: Cross multiply
    1,218,808.97x = 1,828,913.49 × 951,820.01
  4. Step 4: Simplify right side
    1,218,808.97x = 1,740,796,456,340.93
  5. Step 5: Solve for x
    x = 1,740,796,456,340.93/1,218,808.97
  6. Step 6: Final answer
    x = 1,428,276.70

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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.