Home / 1,292,304.15-1,783,350.20-809,135.71

Finding the Fourth Proportional to 1,292,304.15, 1,783,350.20 and 809,135.71

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Solution

The fourth proportional to 1,292,304.15, 1,783,350.20 and 809,135.71 is: 1,116,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,304.15 : 1,783,350.20 = 809,135.71 : x
  2. Step 2: Convert to fraction form
    1,292,304.15/1,783,350.20 = 809,135.71/x
  3. Step 3: Cross multiply
    1,292,304.15x = 1,783,350.20 × 809,135.71
  4. Step 4: Simplify right side
    1,292,304.15x = 1,442,972,327,820.11
  5. Step 5: Solve for x
    x = 1,442,972,327,820.11/1,292,304.15
  6. Step 6: Final answer
    x = 1,116,588.79

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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.