Home / 1,431,849.87-1,975,960.26-787,311.59

Finding the Fourth Proportional to 1,431,849.87, 1,975,960.26 and 787,311.59

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Solution

The fourth proportional to 1,431,849.87, 1,975,960.26 and 787,311.59 is: 1,086,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,849.87 : 1,975,960.26 = 787,311.59 : x
  2. Step 2: Convert to fraction form
    1,431,849.87/1,975,960.26 = 787,311.59/x
  3. Step 3: Cross multiply
    1,431,849.87x = 1,975,960.26 × 787,311.59
  4. Step 4: Simplify right side
    1,431,849.87x = 1,555,696,404,197.61
  5. Step 5: Solve for x
    x = 1,555,696,404,197.61/1,431,849.87
  6. Step 6: Final answer
    x = 1,086,494.08

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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.