Home / 880,109.54-1,320,448.62-407,105.18

Finding the Fourth Proportional to 880,109.54, 1,320,448.62 and 407,105.18

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Solution

The fourth proportional to 880,109.54, 1,320,448.62 and 407,105.18 is: 610,789.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,109.54 : 1,320,448.62 = 407,105.18 : x
  2. Step 2: Convert to fraction form
    880,109.54/1,320,448.62 = 407,105.18/x
  3. Step 3: Cross multiply
    880,109.54x = 1,320,448.62 × 407,105.18
  4. Step 4: Simplify right side
    880,109.54x = 537,561,473,125.85
  5. Step 5: Solve for x
    x = 537,561,473,125.85/880,109.54
  6. Step 6: Final answer
    x = 610,789.28

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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.