Home / 1,420,932.80-2,129,561.96-1,063,139.60

Finding the Fourth Proportional to 1,420,932.80, 2,129,561.96 and 1,063,139.60

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Solution

The fourth proportional to 1,420,932.80, 2,129,561.96 and 1,063,139.60 is: 1,593,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,932.80 : 2,129,561.96 = 1,063,139.60 : x
  2. Step 2: Convert to fraction form
    1,420,932.80/2,129,561.96 = 1,063,139.60/x
  3. Step 3: Cross multiply
    1,420,932.80x = 2,129,561.96 × 1,063,139.60
  4. Step 4: Simplify right side
    1,420,932.80x = 2,264,021,650,329.62
  5. Step 5: Solve for x
    x = 2,264,021,650,329.62/1,420,932.80
  6. Step 6: Final answer
    x = 1,593,334.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.