Home / 1,988,842.38-2,744,529.94-1,215,768

Finding the Fourth Proportional to 1,988,842.38, 2,744,529.94 and 1,215,768

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Solution

The fourth proportional to 1,988,842.38, 2,744,529.94 and 1,215,768 is: 1,677,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,842.38 : 2,744,529.94 = 1,215,768 : x
  2. Step 2: Convert to fraction form
    1,988,842.38/2,744,529.94 = 1,215,768/x
  3. Step 3: Cross multiply
    1,988,842.38x = 2,744,529.94 × 1,215,768
  4. Step 4: Simplify right side
    1,988,842.38x = 3,336,711,676,093.92
  5. Step 5: Solve for x
    x = 3,336,711,676,093.92/1,988,842.38
  6. Step 6: Final answer
    x = 1,677,715.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.