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Finding the Fourth Proportional to 511,476.20, 767,435.60 and 274,542.20

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Solution

The fourth proportional to 511,476.20, 767,435.60 and 274,542.20 is: 411,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,476.20 : 767,435.60 = 274,542.20 : x
  2. Step 2: Convert to fraction form
    511,476.20/767,435.60 = 274,542.20/x
  3. Step 3: Cross multiply
    511,476.20x = 767,435.60 × 274,542.20
  4. Step 4: Simplify right side
    511,476.20x = 210,693,457,982.32
  5. Step 5: Solve for x
    x = 210,693,457,982.32/511,476.20
  6. Step 6: Final answer
    x = 411,932.09

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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.