Home / 1,331,401.76-1,837,342.88-719,553.12

Finding the Fourth Proportional to 1,331,401.76, 1,837,342.88 and 719,553.12

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Solution

The fourth proportional to 1,331,401.76, 1,837,342.88 and 719,553.12 is: 992,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,401.76 : 1,837,342.88 = 719,553.12 : x
  2. Step 2: Convert to fraction form
    1,331,401.76/1,837,342.88 = 719,553.12/x
  3. Step 3: Cross multiply
    1,331,401.76x = 1,837,342.88 × 719,553.12
  4. Step 4: Simplify right side
    1,331,401.76x = 1,322,065,801,813.79
  5. Step 5: Solve for x
    x = 1,322,065,801,813.79/1,331,401.76
  6. Step 6: Final answer
    x = 992,987.87

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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.