Home / 856,823.10-1,285,234.65-225,800.70

Finding the Fourth Proportional to 856,823.10, 1,285,234.65 and 225,800.70

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Solution

The fourth proportional to 856,823.10, 1,285,234.65 and 225,800.70 is: 338,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,823.10 : 1,285,234.65 = 225,800.70 : x
  2. Step 2: Convert to fraction form
    856,823.10/1,285,234.65 = 225,800.70/x
  3. Step 3: Cross multiply
    856,823.10x = 1,285,234.65 × 225,800.70
  4. Step 4: Simplify right side
    856,823.10x = 290,206,883,634.26
  5. Step 5: Solve for x
    x = 290,206,883,634.26/856,823.10
  6. Step 6: Final answer
    x = 338,701.05

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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.