Home / 519,451.20-777,621.60-308,980.80

Finding the Fourth Proportional to 519,451.20, 777,621.60 and 308,980.80

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Solution

The fourth proportional to 519,451.20, 777,621.60 and 308,980.80 is: 462,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,451.20 : 777,621.60 = 308,980.80 : x
  2. Step 2: Convert to fraction form
    519,451.20/777,621.60 = 308,980.80/x
  3. Step 3: Cross multiply
    519,451.20x = 777,621.60 × 308,980.80
  4. Step 4: Simplify right side
    519,451.20x = 240,270,144,065.28
  5. Step 5: Solve for x
    x = 240,270,144,065.28/519,451.20
  6. Step 6: Final answer
    x = 462,546.13

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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.