Home / 1,431,400.46-1,975,336.73-819,562.61

Finding the Fourth Proportional to 1,431,400.46, 1,975,336.73 and 819,562.61

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Solution

The fourth proportional to 1,431,400.46, 1,975,336.73 and 819,562.61 is: 1,130,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,400.46 : 1,975,336.73 = 819,562.61 : x
  2. Step 2: Convert to fraction form
    1,431,400.46/1,975,336.73 = 819,562.61/x
  3. Step 3: Cross multiply
    1,431,400.46x = 1,975,336.73 × 819,562.61
  4. Step 4: Simplify right side
    1,431,400.46x = 1,618,912,126,067.67
  5. Step 5: Solve for x
    x = 1,618,912,126,067.67/1,431,400.46
  6. Step 6: Final answer
    x = 1,130,998.75

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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.