Home / 821,619.40-1,232,429.10-804,123.40

Finding the Fourth Proportional to 821,619.40, 1,232,429.10 and 804,123.40

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Solution

The fourth proportional to 821,619.40, 1,232,429.10 and 804,123.40 is: 1,206,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,619.40 : 1,232,429.10 = 804,123.40 : x
  2. Step 2: Convert to fraction form
    821,619.40/1,232,429.10 = 804,123.40/x
  3. Step 3: Cross multiply
    821,619.40x = 1,232,429.10 × 804,123.40
  4. Step 4: Simplify right side
    821,619.40x = 991,025,078,150.94
  5. Step 5: Solve for x
    x = 991,025,078,150.94/821,619.40
  6. Step 6: Final answer
    x = 1,206,185.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.