Home / 891,839.73-1,230,388.47-509,661.48

Finding the Fourth Proportional to 891,839.73, 1,230,388.47 and 509,661.48

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Solution

The fourth proportional to 891,839.73, 1,230,388.47 and 509,661.48 is: 703,132.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,839.73 : 1,230,388.47 = 509,661.48 : x
  2. Step 2: Convert to fraction form
    891,839.73/1,230,388.47 = 509,661.48/x
  3. Step 3: Cross multiply
    891,839.73x = 1,230,388.47 × 509,661.48
  4. Step 4: Simplify right side
    891,839.73x = 627,081,608,595.14
  5. Step 5: Solve for x
    x = 627,081,608,595.14/891,839.73
  6. Step 6: Final answer
    x = 703,132.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.