Home / 868,752.20-1,303,257.90-307,742.60

Finding the Fourth Proportional to 868,752.20, 1,303,257.90 and 307,742.60

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Solution

The fourth proportional to 868,752.20, 1,303,257.90 and 307,742.60 is: 461,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,752.20 : 1,303,257.90 = 307,742.60 : x
  2. Step 2: Convert to fraction form
    868,752.20/1,303,257.90 = 307,742.60/x
  3. Step 3: Cross multiply
    868,752.20x = 1,303,257.90 × 307,742.60
  4. Step 4: Simplify right side
    868,752.20x = 401,067,974,616.54
  5. Step 5: Solve for x
    x = 401,067,974,616.54/868,752.20
  6. Step 6: Final answer
    x = 461,659.81

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1.5x scale

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.