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Finding the Fourth Proportional to 663,520.24, 995,280.40 and 220,288.24

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Solution

The fourth proportional to 663,520.24, 995,280.40 and 220,288.24 is: 330,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,520.24 : 995,280.40 = 220,288.24 : x
  2. Step 2: Convert to fraction form
    663,520.24/995,280.40 = 220,288.24/x
  3. Step 3: Cross multiply
    663,520.24x = 995,280.40 × 220,288.24
  4. Step 4: Simplify right side
    663,520.24x = 219,248,567,622.50
  5. Step 5: Solve for x
    x = 219,248,567,622.50/663,520.24
  6. Step 6: Final answer
    x = 330,432.37

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Half scale
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Double scale
Find fourth proportional to 663,521.24, 995,281.90 and 220,289.24
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.