Home / 1,425,401.80-1,967,055-780,845.20

Finding the Fourth Proportional to 1,425,401.80, 1,967,055 and 780,845.20

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Solution

The fourth proportional to 1,425,401.80, 1,967,055 and 780,845.20 is: 1,077,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,401.80 : 1,967,055 = 780,845.20 : x
  2. Step 2: Convert to fraction form
    1,425,401.80/1,967,055 = 780,845.20/x
  3. Step 3: Cross multiply
    1,425,401.80x = 1,967,055 × 780,845.20
  4. Step 4: Simplify right side
    1,425,401.80x = 1,535,965,454,886
  5. Step 5: Solve for x
    x = 1,535,965,454,886/1,425,401.80
  6. Step 6: Final answer
    x = 1,077,566.66

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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.