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Finding the Fourth Proportional to 559,021.80, 838,532.70 and 551,148.60

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Solution

The fourth proportional to 559,021.80, 838,532.70 and 551,148.60 is: 826,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,021.80 : 838,532.70 = 551,148.60 : x
  2. Step 2: Convert to fraction form
    559,021.80/838,532.70 = 551,148.60/x
  3. Step 3: Cross multiply
    559,021.80x = 838,532.70 × 551,148.60
  4. Step 4: Simplify right side
    559,021.80x = 462,156,123,659.22
  5. Step 5: Solve for x
    x = 462,156,123,659.22/559,021.80
  6. Step 6: Final answer
    x = 826,722.90

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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.