Home / 641,423.26-962,124.57-220,702.78

Finding the Fourth Proportional to 641,423.26, 962,124.57 and 220,702.78

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Solution

The fourth proportional to 641,423.26, 962,124.57 and 220,702.78 is: 331,050.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,423.26 : 962,124.57 = 220,702.78 : x
  2. Step 2: Convert to fraction form
    641,423.26/962,124.57 = 220,702.78/x
  3. Step 3: Cross multiply
    641,423.26x = 962,124.57 × 220,702.78
  4. Step 4: Simplify right side
    641,423.26x = 212,343,567,305.31
  5. Step 5: Solve for x
    x = 212,343,567,305.31/641,423.26
  6. Step 6: Final answer
    x = 331,050.62

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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.