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Finding the Fourth Proportional to 570,383.40, 855,619.65 and 254,872.20

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Solution

The fourth proportional to 570,383.40, 855,619.65 and 254,872.20 is: 382,328.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,383.40 : 855,619.65 = 254,872.20 : x
  2. Step 2: Convert to fraction form
    570,383.40/855,619.65 = 254,872.20/x
  3. Step 3: Cross multiply
    570,383.40x = 855,619.65 × 254,872.20
  4. Step 4: Simplify right side
    570,383.40x = 218,073,662,558.73
  5. Step 5: Solve for x
    x = 218,073,662,558.73/570,383.40
  6. Step 6: Final answer
    x = 382,328.21

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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.