Home / 1,372,057.20-2,058,085.80-425,523.60

Finding the Fourth Proportional to 1,372,057.20, 2,058,085.80 and 425,523.60

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Solution

The fourth proportional to 1,372,057.20, 2,058,085.80 and 425,523.60 is: 638,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,057.20 : 2,058,085.80 = 425,523.60 : x
  2. Step 2: Convert to fraction form
    1,372,057.20/2,058,085.80 = 425,523.60/x
  3. Step 3: Cross multiply
    1,372,057.20x = 2,058,085.80 × 425,523.60
  4. Step 4: Simplify right side
    1,372,057.20x = 875,764,078,724.88
  5. Step 5: Solve for x
    x = 875,764,078,724.88/1,372,057.20
  6. Step 6: Final answer
    x = 638,285.40

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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.