Home / 1,353,520.13-1,867,857.77-809,678.84

Finding the Fourth Proportional to 1,353,520.13, 1,867,857.77 and 809,678.84

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Solution

The fourth proportional to 1,353,520.13, 1,867,857.77 and 809,678.84 is: 1,117,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,520.13 : 1,867,857.77 = 809,678.84 : x
  2. Step 2: Convert to fraction form
    1,353,520.13/1,867,857.77 = 809,678.84/x
  3. Step 3: Cross multiply
    1,353,520.13x = 1,867,857.77 × 809,678.84
  4. Step 4: Simplify right side
    1,353,520.13x = 1,512,364,905,183.50
  5. Step 5: Solve for x
    x = 1,512,364,905,183.50/1,353,520.13
  6. Step 6: Final answer
    x = 1,117,356.79

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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.