Home / 1,420,665.44-1,960,493.64-776,069.06

Finding the Fourth Proportional to 1,420,665.44, 1,960,493.64 and 776,069.06

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Solution

The fourth proportional to 1,420,665.44, 1,960,493.64 and 776,069.06 is: 1,070,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,665.44 : 1,960,493.64 = 776,069.06 : x
  2. Step 2: Convert to fraction form
    1,420,665.44/1,960,493.64 = 776,069.06/x
  3. Step 3: Cross multiply
    1,420,665.44x = 1,960,493.64 × 776,069.06
  4. Step 4: Simplify right side
    1,420,665.44x = 1,521,478,456,330.78
  5. Step 5: Solve for x
    x = 1,521,478,456,330.78/1,420,665.44
  6. Step 6: Final answer
    x = 1,070,961.83

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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.