Home / 1,431,417.38-1,975,360.10-819,579.56

Finding the Fourth Proportional to 1,431,417.38, 1,975,360.10 and 819,579.56

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Solution

The fourth proportional to 1,431,417.38, 1,975,360.10 and 819,579.56 is: 1,131,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,417.38 : 1,975,360.10 = 819,579.56 : x
  2. Step 2: Convert to fraction form
    1,431,417.38/1,975,360.10 = 819,579.56/x
  3. Step 3: Cross multiply
    1,431,417.38x = 1,975,360.10 × 819,579.56
  4. Step 4: Simplify right side
    1,431,417.38x = 1,618,964,747,624.86
  5. Step 5: Solve for x
    x = 1,618,964,747,624.86/1,431,417.38
  6. Step 6: Final answer
    x = 1,131,022.14

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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.