Home / 1,485,206.60-2,227,591.20-420,356.30

Finding the Fourth Proportional to 1,485,206.60, 2,227,591.20 and 420,356.30

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Solution

The fourth proportional to 1,485,206.60, 2,227,591.20 and 420,356.30 is: 630,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,206.60 : 2,227,591.20 = 420,356.30 : x
  2. Step 2: Convert to fraction form
    1,485,206.60/2,227,591.20 = 420,356.30/x
  3. Step 3: Cross multiply
    1,485,206.60x = 2,227,591.20 × 420,356.30
  4. Step 4: Simplify right side
    1,485,206.60x = 936,381,994,744.56
  5. Step 5: Solve for x
    x = 936,381,994,744.56/1,485,206.60
  6. Step 6: Final answer
    x = 630,472.55

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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.