Home / 902,890.80-1,354,141.80-397,450.80

Finding the Fourth Proportional to 902,890.80, 1,354,141.80 and 397,450.80

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Solution

The fourth proportional to 902,890.80, 1,354,141.80 and 397,450.80 is: 596,090.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,890.80 : 1,354,141.80 = 397,450.80 : x
  2. Step 2: Convert to fraction form
    902,890.80/1,354,141.80 = 397,450.80/x
  3. Step 3: Cross multiply
    902,890.80x = 1,354,141.80 × 397,450.80
  4. Step 4: Simplify right side
    902,890.80x = 538,204,741,723.44
  5. Step 5: Solve for x
    x = 538,204,741,723.44/902,890.80
  6. Step 6: Final answer
    x = 596,090.63

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Half scale
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Double scale
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Similar ratio
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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.