Home / 1,420,304.28-1,959,989.56-775,727

Finding the Fourth Proportional to 1,420,304.28, 1,959,989.56 and 775,727

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Solution

The fourth proportional to 1,420,304.28, 1,959,989.56 and 775,727 is: 1,070,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,304.28 : 1,959,989.56 = 775,727 : x
  2. Step 2: Convert to fraction form
    1,420,304.28/1,959,989.56 = 775,727/x
  3. Step 3: Cross multiply
    1,420,304.28x = 1,959,989.56 × 775,727
  4. Step 4: Simplify right side
    1,420,304.28x = 1,520,416,821,410.12
  5. Step 5: Solve for x
    x = 1,520,416,821,410.12/1,420,304.28
  6. Step 6: Final answer
    x = 1,070,486.69

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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.