Home / 1,180,389.24-1,628,942.22-643,856.76

Finding the Fourth Proportional to 1,180,389.24, 1,628,942.22 and 643,856.76

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Solution

The fourth proportional to 1,180,389.24, 1,628,942.22 and 643,856.76 is: 888,525.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,389.24 : 1,628,942.22 = 643,856.76 : x
  2. Step 2: Convert to fraction form
    1,180,389.24/1,628,942.22 = 643,856.76/x
  3. Step 3: Cross multiply
    1,180,389.24x = 1,628,942.22 × 643,856.76
  4. Step 4: Simplify right side
    1,180,389.24x = 1,048,805,459,996.41
  5. Step 5: Solve for x
    x = 1,048,805,459,996.41/1,180,389.24
  6. Step 6: Final answer
    x = 888,525.09

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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.