Home / 578,467.20-865,951.20-515,481.60

Finding the Fourth Proportional to 578,467.20, 865,951.20 and 515,481.60

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Solution

The fourth proportional to 578,467.20, 865,951.20 and 515,481.60 is: 771,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,467.20 : 865,951.20 = 515,481.60 : x
  2. Step 2: Convert to fraction form
    578,467.20/865,951.20 = 515,481.60/x
  3. Step 3: Cross multiply
    578,467.20x = 865,951.20 × 515,481.60
  4. Step 4: Simplify right side
    578,467.20x = 446,381,910,097.92
  5. Step 5: Solve for x
    x = 446,381,910,097.92/578,467.20
  6. Step 6: Final answer
    x = 771,663.30

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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.