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Finding the Fourth Proportional to 636,861.74, 955,522.26 and 321,080.84

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Solution

The fourth proportional to 636,861.74, 955,522.26 and 321,080.84 is: 481,737.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,861.74 : 955,522.26 = 321,080.84 : x
  2. Step 2: Convert to fraction form
    636,861.74/955,522.26 = 321,080.84/x
  3. Step 3: Cross multiply
    636,861.74x = 955,522.26 × 321,080.84
  4. Step 4: Simplify right side
    636,861.74x = 306,799,889,879.50
  5. Step 5: Solve for x
    x = 306,799,889,879.50/636,861.74
  6. Step 6: Final answer
    x = 481,737.04

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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.