Home / 1,431,399.46-1,975,335.35-819,561.61

Finding the Fourth Proportional to 1,431,399.46, 1,975,335.35 and 819,561.61

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Solution

The fourth proportional to 1,431,399.46, 1,975,335.35 and 819,561.61 is: 1,130,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,399.46 : 1,975,335.35 = 819,561.61 : x
  2. Step 2: Convert to fraction form
    1,431,399.46/1,975,335.35 = 819,561.61/x
  3. Step 3: Cross multiply
    1,431,399.46x = 1,975,335.35 × 819,561.61
  4. Step 4: Simplify right side
    1,431,399.46x = 1,618,909,005,761.43
  5. Step 5: Solve for x
    x = 1,618,909,005,761.43/1,431,399.46
  6. Step 6: Final answer
    x = 1,130,997.36

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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.