Home / 814,277.20-1,221,415.80-683,640.40

Finding the Fourth Proportional to 814,277.20, 1,221,415.80 and 683,640.40

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Solution

The fourth proportional to 814,277.20, 1,221,415.80 and 683,640.40 is: 1,025,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,277.20 : 1,221,415.80 = 683,640.40 : x
  2. Step 2: Convert to fraction form
    814,277.20/1,221,415.80 = 683,640.40/x
  3. Step 3: Cross multiply
    814,277.20x = 1,221,415.80 × 683,640.40
  4. Step 4: Simplify right side
    814,277.20x = 835,009,186,078.32
  5. Step 5: Solve for x
    x = 835,009,186,078.32/814,277.20
  6. Step 6: Final answer
    x = 1,025,460.60

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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.