Home / 1,078,561.12-1,617,612-320,197

Finding the Fourth Proportional to 1,078,561.12, 1,617,612 and 320,197

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Solution

The fourth proportional to 1,078,561.12, 1,617,612 and 320,197 is: 480,227.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,561.12 : 1,617,612 = 320,197 : x
  2. Step 2: Convert to fraction form
    1,078,561.12/1,617,612 = 320,197/x
  3. Step 3: Cross multiply
    1,078,561.12x = 1,617,612 × 320,197
  4. Step 4: Simplify right side
    1,078,561.12x = 517,954,509,564
  5. Step 5: Solve for x
    x = 517,954,509,564/1,078,561.12
  6. Step 6: Final answer
    x = 480,227.31

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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.