Home / 1,586,180.47-2,188,931.83-861,028.68

Finding the Fourth Proportional to 1,586,180.47, 2,188,931.83 and 861,028.68

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Solution

The fourth proportional to 1,586,180.47, 2,188,931.83 and 861,028.68 is: 1,188,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,180.47 : 2,188,931.83 = 861,028.68 : x
  2. Step 2: Convert to fraction form
    1,586,180.47/2,188,931.83 = 861,028.68/x
  3. Step 3: Cross multiply
    1,586,180.47x = 2,188,931.83 × 861,028.68
  4. Step 4: Simplify right side
    1,586,180.47x = 1,884,733,079,889.74
  5. Step 5: Solve for x
    x = 1,884,733,079,889.74/1,586,180.47
  6. Step 6: Final answer
    x = 1,188,221.09

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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.