Home / 1,226,278.88-1,839,886.49-478,383.20

Finding the Fourth Proportional to 1,226,278.88, 1,839,886.49 and 478,383.20

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Solution

The fourth proportional to 1,226,278.88, 1,839,886.49 and 478,383.20 is: 717,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,278.88 : 1,839,886.49 = 478,383.20 : x
  2. Step 2: Convert to fraction form
    1,226,278.88/1,839,886.49 = 478,383.20/x
  3. Step 3: Cross multiply
    1,226,278.88x = 1,839,886.49 × 478,383.20
  4. Step 4: Simplify right side
    1,226,278.88x = 880,170,786,722.97
  5. Step 5: Solve for x
    x = 880,170,786,722.97/1,226,278.88
  6. Step 6: Final answer
    x = 717,757.44

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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.