Home / 816,156.20-1,224,234.30-442,908.20

Finding the Fourth Proportional to 816,156.20, 1,224,234.30 and 442,908.20

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Solution

The fourth proportional to 816,156.20, 1,224,234.30 and 442,908.20 is: 664,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,156.20 : 1,224,234.30 = 442,908.20 : x
  2. Step 2: Convert to fraction form
    816,156.20/1,224,234.30 = 442,908.20/x
  3. Step 3: Cross multiply
    816,156.20x = 1,224,234.30 × 442,908.20
  4. Step 4: Simplify right side
    816,156.20x = 542,223,410,191.26
  5. Step 5: Solve for x
    x = 542,223,410,191.26/816,156.20
  6. Step 6: Final answer
    x = 664,362.30

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Half scale
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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.