Home / 1,372,159.20-2,058,238.80-425,625.60

Finding the Fourth Proportional to 1,372,159.20, 2,058,238.80 and 425,625.60

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Solution

The fourth proportional to 1,372,159.20, 2,058,238.80 and 425,625.60 is: 638,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,159.20 : 2,058,238.80 = 425,625.60 : x
  2. Step 2: Convert to fraction form
    1,372,159.20/2,058,238.80 = 425,625.60/x
  3. Step 3: Cross multiply
    1,372,159.20x = 2,058,238.80 × 425,625.60
  4. Step 4: Simplify right side
    1,372,159.20x = 876,039,124,193.28
  5. Step 5: Solve for x
    x = 876,039,124,193.28/1,372,159.20
  6. Step 6: Final answer
    x = 638,438.40

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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.