Home / 1,331,078.48-1,837,265.10-787,403.28

Finding the Fourth Proportional to 1,331,078.48, 1,837,265.10 and 787,403.28

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Solution

The fourth proportional to 1,331,078.48, 1,837,265.10 and 787,403.28 is: 1,086,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,078.48 : 1,837,265.10 = 787,403.28 : x
  2. Step 2: Convert to fraction form
    1,331,078.48/1,837,265.10 = 787,403.28/x
  3. Step 3: Cross multiply
    1,331,078.48x = 1,837,265.10 × 787,403.28
  4. Step 4: Simplify right side
    1,331,078.48x = 1,446,668,565,969.53
  5. Step 5: Solve for x
    x = 1,446,668,565,969.53/1,331,078.48
  6. Step 6: Final answer
    x = 1,086,839.42

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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.