Home / 519,627.20-778,857.60-220,056.80

Finding the Fourth Proportional to 519,627.20, 778,857.60 and 220,056.80

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Solution

The fourth proportional to 519,627.20, 778,857.60 and 220,056.80 is: 329,838.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,627.20 : 778,857.60 = 220,056.80 : x
  2. Step 2: Convert to fraction form
    519,627.20/778,857.60 = 220,056.80/x
  3. Step 3: Cross multiply
    519,627.20x = 778,857.60 × 220,056.80
  4. Step 4: Simplify right side
    519,627.20x = 171,392,911,111.68
  5. Step 5: Solve for x
    x = 171,392,911,111.68/519,627.20
  6. Step 6: Final answer
    x = 329,838.22

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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.