Home / 1,384,142.20-2,073,977.70-783,316.60

Finding the Fourth Proportional to 1,384,142.20, 2,073,977.70 and 783,316.60

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Solution

The fourth proportional to 1,384,142.20, 2,073,977.70 and 783,316.60 is: 1,173,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,142.20 : 2,073,977.70 = 783,316.60 : x
  2. Step 2: Convert to fraction form
    1,384,142.20/2,073,977.70 = 783,316.60/x
  3. Step 3: Cross multiply
    1,384,142.20x = 2,073,977.70 × 783,316.60
  4. Step 4: Simplify right side
    1,384,142.20x = 1,624,581,160,439.82
  5. Step 5: Solve for x
    x = 1,624,581,160,439.82/1,384,142.20
  6. Step 6: Final answer
    x = 1,173,709.72

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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.