Home / 1,320,019.92-1,821,578.76-716,394.96

Finding the Fourth Proportional to 1,320,019.92, 1,821,578.76 and 716,394.96

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Solution

The fourth proportional to 1,320,019.92, 1,821,578.76 and 716,394.96 is: 988,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,019.92 : 1,821,578.76 = 716,394.96 : x
  2. Step 2: Convert to fraction form
    1,320,019.92/1,821,578.76 = 716,394.96/x
  3. Step 3: Cross multiply
    1,320,019.92x = 1,821,578.76 × 716,394.96
  4. Step 4: Simplify right side
    1,320,019.92x = 1,304,969,842,907.05
  5. Step 5: Solve for x
    x = 1,304,969,842,907.05/1,320,019.92
  6. Step 6: Final answer
    x = 988,598.60

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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.