Home / 726,692.40-1,090,427.40-306,010.80

Finding the Fourth Proportional to 726,692.40, 1,090,427.40 and 306,010.80

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Solution

The fourth proportional to 726,692.40, 1,090,427.40 and 306,010.80 is: 459,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,692.40 : 1,090,427.40 = 306,010.80 : x
  2. Step 2: Convert to fraction form
    726,692.40/1,090,427.40 = 306,010.80/x
  3. Step 3: Cross multiply
    726,692.40x = 1,090,427.40 × 306,010.80
  4. Step 4: Simplify right side
    726,692.40x = 333,682,561,015.92
  5. Step 5: Solve for x
    x = 333,682,561,015.92/726,692.40
  6. Step 6: Final answer
    x = 459,179.92

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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.