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Finding the Fourth Proportional to 807,558.40, 1,211,240.40 and 334,194.40

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Solution

The fourth proportional to 807,558.40, 1,211,240.40 and 334,194.40 is: 501,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,558.40 : 1,211,240.40 = 334,194.40 : x
  2. Step 2: Convert to fraction form
    807,558.40/1,211,240.40 = 334,194.40/x
  3. Step 3: Cross multiply
    807,558.40x = 1,211,240.40 × 334,194.40
  4. Step 4: Simplify right side
    807,558.40x = 404,789,758,733.76
  5. Step 5: Solve for x
    x = 404,789,758,733.76/807,558.40
  6. Step 6: Final answer
    x = 501,251.38

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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.