Home / 1,431,419.38-1,975,362.86-819,581.56

Finding the Fourth Proportional to 1,431,419.38, 1,975,362.86 and 819,581.56

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Solution

The fourth proportional to 1,431,419.38, 1,975,362.86 and 819,581.56 is: 1,131,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,419.38 : 1,975,362.86 = 819,581.56 : x
  2. Step 2: Convert to fraction form
    1,431,419.38/1,975,362.86 = 819,581.56/x
  3. Step 3: Cross multiply
    1,431,419.38x = 1,975,362.86 × 819,581.56
  4. Step 4: Simplify right side
    1,431,419.38x = 1,618,970,974,364.86
  5. Step 5: Solve for x
    x = 1,618,970,974,364.86/1,431,419.38
  6. Step 6: Final answer
    x = 1,131,024.91

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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.