Home / 1,353,311.80-1,867,769.22-780,240.04

Finding the Fourth Proportional to 1,353,311.80, 1,867,769.22 and 780,240.04

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Solution

The fourth proportional to 1,353,311.80, 1,867,769.22 and 780,240.04 is: 1,076,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,311.80 : 1,867,769.22 = 780,240.04 : x
  2. Step 2: Convert to fraction form
    1,353,311.80/1,867,769.22 = 780,240.04/x
  3. Step 3: Cross multiply
    1,353,311.80x = 1,867,769.22 × 780,240.04
  4. Step 4: Simplify right side
    1,353,311.80x = 1,457,308,330,923.57
  5. Step 5: Solve for x
    x = 1,457,308,330,923.57/1,353,311.80
  6. Step 6: Final answer
    x = 1,076,845.95

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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.