Home / 1,384,144.20-2,073,980.70-783,318.60

Finding the Fourth Proportional to 1,384,144.20, 2,073,980.70 and 783,318.60

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Solution

The fourth proportional to 1,384,144.20, 2,073,980.70 and 783,318.60 is: 1,173,712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,144.20 : 2,073,980.70 = 783,318.60 : x
  2. Step 2: Convert to fraction form
    1,384,144.20/2,073,980.70 = 783,318.60/x
  3. Step 3: Cross multiply
    1,384,144.20x = 2,073,980.70 × 783,318.60
  4. Step 4: Simplify right side
    1,384,144.20x = 1,624,587,658,351.02
  5. Step 5: Solve for x
    x = 1,624,587,658,351.02/1,384,144.20
  6. Step 6: Final answer
    x = 1,173,712.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.