Home / 1,425,449.32-1,967,122.39-780,855.37

Finding the Fourth Proportional to 1,425,449.32, 1,967,122.39 and 780,855.37

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Solution

The fourth proportional to 1,425,449.32, 1,967,122.39 and 780,855.37 is: 1,077,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,449.32 : 1,967,122.39 = 780,855.37 : x
  2. Step 2: Convert to fraction form
    1,425,449.32/1,967,122.39 = 780,855.37/x
  3. Step 3: Cross multiply
    1,425,449.32x = 1,967,122.39 × 780,855.37
  4. Step 4: Simplify right side
    1,425,449.32x = 1,536,038,081,678.73
  5. Step 5: Solve for x
    x = 1,536,038,081,678.73/1,425,449.32
  6. Step 6: Final answer
    x = 1,077,581.69

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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.