Home / 1,383,041.05-1,908,620.18-762,917.40

Finding the Fourth Proportional to 1,383,041.05, 1,908,620.18 and 762,917.40

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Solution

The fourth proportional to 1,383,041.05, 1,908,620.18 and 762,917.40 is: 1,052,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,041.05 : 1,908,620.18 = 762,917.40 : x
  2. Step 2: Convert to fraction form
    1,383,041.05/1,908,620.18 = 762,917.40/x
  3. Step 3: Cross multiply
    1,383,041.05x = 1,908,620.18 × 762,917.40
  4. Step 4: Simplify right side
    1,383,041.05x = 1,456,119,544,359.49
  5. Step 5: Solve for x
    x = 1,456,119,544,359.49/1,383,041.05
  6. Step 6: Final answer
    x = 1,052,838.99

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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.