Home / 603,724.20-905,586.30-426,577.20

Finding the Fourth Proportional to 603,724.20, 905,586.30 and 426,577.20

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Solution

The fourth proportional to 603,724.20, 905,586.30 and 426,577.20 is: 639,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,724.20 : 905,586.30 = 426,577.20 : x
  2. Step 2: Convert to fraction form
    603,724.20/905,586.30 = 426,577.20/x
  3. Step 3: Cross multiply
    603,724.20x = 905,586.30 × 426,577.20
  4. Step 4: Simplify right side
    603,724.20x = 386,302,468,212.36
  5. Step 5: Solve for x
    x = 386,302,468,212.36/603,724.20
  6. Step 6: Final answer
    x = 639,865.80

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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.