Home / 1,087,028.80-1,631,178.24-455,889.76

Finding the Fourth Proportional to 1,087,028.80, 1,631,178.24 and 455,889.76

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Solution

The fourth proportional to 1,087,028.80, 1,631,178.24 and 455,889.76 is: 684,100.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,028.80 : 1,631,178.24 = 455,889.76 : x
  2. Step 2: Convert to fraction form
    1,087,028.80/1,631,178.24 = 455,889.76/x
  3. Step 3: Cross multiply
    1,087,028.80x = 1,631,178.24 × 455,889.76
  4. Step 4: Simplify right side
    1,087,028.80x = 743,637,456,350.82
  5. Step 5: Solve for x
    x = 743,637,456,350.82/1,087,028.80
  6. Step 6: Final answer
    x = 684,100.97

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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.