Home / 905,002.80-1,356,640.20-336,231.60

Finding the Fourth Proportional to 905,002.80, 1,356,640.20 and 336,231.60

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Solution

The fourth proportional to 905,002.80, 1,356,640.20 and 336,231.60 is: 504,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,002.80 : 1,356,640.20 = 336,231.60 : x
  2. Step 2: Convert to fraction form
    905,002.80/1,356,640.20 = 336,231.60/x
  3. Step 3: Cross multiply
    905,002.80x = 1,356,640.20 × 336,231.60
  4. Step 4: Simplify right side
    905,002.80x = 456,145,305,070.32
  5. Step 5: Solve for x
    x = 456,145,305,070.32/905,002.80
  6. Step 6: Final answer
    x = 504,026.40

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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.