Home / 1,431,041.76-1,974,406.56-857,872.80

Finding the Fourth Proportional to 1,431,041.76, 1,974,406.56 and 857,872.80

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Solution

The fourth proportional to 1,431,041.76, 1,974,406.56 and 857,872.80 is: 1,183,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,041.76 : 1,974,406.56 = 857,872.80 : x
  2. Step 2: Convert to fraction form
    1,431,041.76/1,974,406.56 = 857,872.80/x
  3. Step 3: Cross multiply
    1,431,041.76x = 1,974,406.56 × 857,872.80
  4. Step 4: Simplify right side
    1,431,041.76x = 1,693,789,683,965.57
  5. Step 5: Solve for x
    x = 1,693,789,683,965.57/1,431,041.76
  6. Step 6: Final answer
    x = 1,183,606.05

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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.