Home / 1,586,818.98-2,189,803.26-861,660.80

Finding the Fourth Proportional to 1,586,818.98, 2,189,803.26 and 861,660.80

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Solution

The fourth proportional to 1,586,818.98, 2,189,803.26 and 861,660.80 is: 1,189,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,818.98 : 2,189,803.26 = 861,660.80 : x
  2. Step 2: Convert to fraction form
    1,586,818.98/2,189,803.26 = 861,660.80/x
  3. Step 3: Cross multiply
    1,586,818.98x = 2,189,803.26 × 861,660.80
  4. Step 4: Simplify right side
    1,586,818.98x = 1,886,867,628,854.21
  5. Step 5: Solve for x
    x = 1,886,867,628,854.21/1,586,818.98
  6. Step 6: Final answer
    x = 1,189,088.14

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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.