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Finding the Fourth Proportional to 572,704.20, 859,056.30 and 320,761.80

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Solution

The fourth proportional to 572,704.20, 859,056.30 and 320,761.80 is: 481,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,704.20 : 859,056.30 = 320,761.80 : x
  2. Step 2: Convert to fraction form
    572,704.20/859,056.30 = 320,761.80/x
  3. Step 3: Cross multiply
    572,704.20x = 859,056.30 × 320,761.80
  4. Step 4: Simplify right side
    572,704.20x = 275,552,445,089.34
  5. Step 5: Solve for x
    x = 275,552,445,089.34/572,704.20
  6. Step 6: Final answer
    x = 481,142.70

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Double scale
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Similar ratio
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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.