Home / 800,648.60-1,200,784.25-294,934.91

Finding the Fourth Proportional to 800,648.60, 1,200,784.25 and 294,934.91

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Solution

The fourth proportional to 800,648.60, 1,200,784.25 and 294,934.91 is: 442,332.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,648.60 : 1,200,784.25 = 294,934.91 : x
  2. Step 2: Convert to fraction form
    800,648.60/1,200,784.25 = 294,934.91/x
  3. Step 3: Cross multiply
    800,648.60x = 1,200,784.25 × 294,934.91
  4. Step 4: Simplify right side
    800,648.60x = 354,153,189,436.58
  5. Step 5: Solve for x
    x = 354,153,189,436.58/800,648.60
  6. Step 6: Final answer
    x = 442,332.87

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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.