Home / 718,823.20-1,078,234.80-220,187.20

Finding the Fourth Proportional to 718,823.20, 1,078,234.80 and 220,187.20

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Solution

The fourth proportional to 718,823.20, 1,078,234.80 and 220,187.20 is: 330,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,823.20 : 1,078,234.80 = 220,187.20 : x
  2. Step 2: Convert to fraction form
    718,823.20/1,078,234.80 = 220,187.20/x
  3. Step 3: Cross multiply
    718,823.20x = 1,078,234.80 × 220,187.20
  4. Step 4: Simplify right side
    718,823.20x = 237,413,501,554.56
  5. Step 5: Solve for x
    x = 237,413,501,554.56/718,823.20
  6. Step 6: Final answer
    x = 330,280.80

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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.