Home / 814,638.80-1,221,958.20-531,208.40

Finding the Fourth Proportional to 814,638.80, 1,221,958.20 and 531,208.40

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Solution

The fourth proportional to 814,638.80, 1,221,958.20 and 531,208.40 is: 796,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,638.80 : 1,221,958.20 = 531,208.40 : x
  2. Step 2: Convert to fraction form
    814,638.80/1,221,958.20 = 531,208.40/x
  3. Step 3: Cross multiply
    814,638.80x = 1,221,958.20 × 531,208.40
  4. Step 4: Simplify right side
    814,638.80x = 649,114,460,288.88
  5. Step 5: Solve for x
    x = 649,114,460,288.88/814,638.80
  6. Step 6: Final answer
    x = 796,812.60

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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.