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Finding the Fourth Proportional to 578,676.40, 868,014.60 and 499,879.60

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Solution

The fourth proportional to 578,676.40, 868,014.60 and 499,879.60 is: 749,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,676.40 : 868,014.60 = 499,879.60 : x
  2. Step 2: Convert to fraction form
    578,676.40/868,014.60 = 499,879.60/x
  3. Step 3: Cross multiply
    578,676.40x = 868,014.60 × 499,879.60
  4. Step 4: Simplify right side
    578,676.40x = 433,902,791,042.16
  5. Step 5: Solve for x
    x = 433,902,791,042.16/578,676.40
  6. Step 6: Final answer
    x = 749,819.40

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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.