Home / 868,805.20-1,303,272.60-307,766.80

Finding the Fourth Proportional to 868,805.20, 1,303,272.60 and 307,766.80

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Solution

The fourth proportional to 868,805.20, 1,303,272.60 and 307,766.80 is: 461,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,805.20 : 1,303,272.60 = 307,766.80 : x
  2. Step 2: Convert to fraction form
    868,805.20/1,303,272.60 = 307,766.80/x
  3. Step 3: Cross multiply
    868,805.20x = 1,303,272.60 × 307,766.80
  4. Step 4: Simplify right side
    868,805.20x = 401,104,037,629.68
  5. Step 5: Solve for x
    x = 401,104,037,629.68/868,805.20
  6. Step 6: Final answer
    x = 461,673.15

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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.