Home / 1,320,086.28-1,821,406.84-747,126.46

Finding the Fourth Proportional to 1,320,086.28, 1,821,406.84 and 747,126.46

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Solution

The fourth proportional to 1,320,086.28, 1,821,406.84 and 747,126.46 is: 1,030,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,086.28 : 1,821,406.84 = 747,126.46 : x
  2. Step 2: Convert to fraction form
    1,320,086.28/1,821,406.84 = 747,126.46/x
  3. Step 3: Cross multiply
    1,320,086.28x = 1,821,406.84 × 747,126.46
  4. Step 4: Simplify right side
    1,320,086.28x = 1,360,821,244,588.99
  5. Step 5: Solve for x
    x = 1,360,821,244,588.99/1,320,086.28
  6. Step 6: Final answer
    x = 1,030,857.80

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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.