Home / 1,216,503.56-1,677,984.00-780,229.87

Finding the Fourth Proportional to 1,216,503.56, 1,677,984.00 and 780,229.87

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Solution

The fourth proportional to 1,216,503.56, 1,677,984.00 and 780,229.87 is: 1,076,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,503.56 : 1,677,984.00 = 780,229.87 : x
  2. Step 2: Convert to fraction form
    1,216,503.56/1,677,984.00 = 780,229.87/x
  3. Step 3: Cross multiply
    1,216,503.56x = 1,677,984.00 × 780,229.87
  4. Step 4: Simplify right side
    1,216,503.56x = 1,309,213,235,450.05
  5. Step 5: Solve for x
    x = 1,309,213,235,450.05/1,216,503.56
  6. Step 6: Final answer
    x = 1,076,209.95

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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.