Home / 449,542.30-674,313.45-394,246.30

Finding the Fourth Proportional to 449,542.30, 674,313.45 and 394,246.30

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Solution

The fourth proportional to 449,542.30, 674,313.45 and 394,246.30 is: 591,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,542.30 : 674,313.45 = 394,246.30 : x
  2. Step 2: Convert to fraction form
    449,542.30/674,313.45 = 394,246.30/x
  3. Step 3: Cross multiply
    449,542.30x = 674,313.45 × 394,246.30
  4. Step 4: Simplify right side
    449,542.30x = 265,845,582,702.74
  5. Step 5: Solve for x
    x = 265,845,582,702.74/449,542.30
  6. Step 6: Final answer
    x = 591,369.45

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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.