Home / 814,276.70-1,221,415.05-683,639.90

Finding the Fourth Proportional to 814,276.70, 1,221,415.05 and 683,639.90

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Solution

The fourth proportional to 814,276.70, 1,221,415.05 and 683,639.90 is: 1,025,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,276.70 : 1,221,415.05 = 683,639.90 : x
  2. Step 2: Convert to fraction form
    814,276.70/1,221,415.05 = 683,639.90/x
  3. Step 3: Cross multiply
    814,276.70x = 1,221,415.05 × 683,639.90
  4. Step 4: Simplify right side
    814,276.70x = 835,008,062,640.50
  5. Step 5: Solve for x
    x = 835,008,062,640.50/814,276.70
  6. Step 6: Final answer
    x = 1,025,459.85

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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.