Home / 1,420,138.03-1,959,806.09-775,577.20

Finding the Fourth Proportional to 1,420,138.03, 1,959,806.09 and 775,577.20

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Solution

The fourth proportional to 1,420,138.03, 1,959,806.09 and 775,577.20 is: 1,070,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,138.03 : 1,959,806.09 = 775,577.20 : x
  2. Step 2: Convert to fraction form
    1,420,138.03/1,959,806.09 = 775,577.20/x
  3. Step 3: Cross multiply
    1,420,138.03x = 1,959,806.09 × 775,577.20
  4. Step 4: Simplify right side
    1,420,138.03x = 1,519,980,919,825.15
  5. Step 5: Solve for x
    x = 1,519,980,919,825.15/1,420,138.03
  6. Step 6: Final answer
    x = 1,070,305.06

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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.