Home / 1,420,564.11-1,960,346.25-775,987.17

Finding the Fourth Proportional to 1,420,564.11, 1,960,346.25 and 775,987.17

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Solution

The fourth proportional to 1,420,564.11, 1,960,346.25 and 775,987.17 is: 1,070,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,564.11 : 1,960,346.25 = 775,987.17 : x
  2. Step 2: Convert to fraction form
    1,420,564.11/1,960,346.25 = 775,987.17/x
  3. Step 3: Cross multiply
    1,420,564.11x = 1,960,346.25 × 775,987.17
  4. Step 4: Simplify right side
    1,420,564.11x = 1,521,203,538,757.61
  5. Step 5: Solve for x
    x = 1,521,203,538,757.61/1,420,564.11
  6. Step 6: Final answer
    x = 1,070,844.69

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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.