Home / 1,218,589.88-1,681,711.79-735,144.64

Finding the Fourth Proportional to 1,218,589.88, 1,681,711.79 and 735,144.64

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Solution

The fourth proportional to 1,218,589.88, 1,681,711.79 and 735,144.64 is: 1,014,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,589.88 : 1,681,711.79 = 735,144.64 : x
  2. Step 2: Convert to fraction form
    1,218,589.88/1,681,711.79 = 735,144.64/x
  3. Step 3: Cross multiply
    1,218,589.88x = 1,681,711.79 × 735,144.64
  4. Step 4: Simplify right side
    1,218,589.88x = 1,236,301,400,563.30
  5. Step 5: Solve for x
    x = 1,236,301,400,563.30/1,218,589.88
  6. Step 6: Final answer
    x = 1,014,534.44

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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.