Home / 385,574.20-579,743.70-324,748.60

Finding the Fourth Proportional to 385,574.20, 579,743.70 and 324,748.60

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Solution

The fourth proportional to 385,574.20, 579,743.70 and 324,748.60 is: 488,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,574.20 : 579,743.70 = 324,748.60 : x
  2. Step 2: Convert to fraction form
    385,574.20/579,743.70 = 324,748.60/x
  3. Step 3: Cross multiply
    385,574.20x = 579,743.70 × 324,748.60
  4. Step 4: Simplify right side
    385,574.20x = 188,270,954,933.82
  5. Step 5: Solve for x
    x = 188,270,954,933.82/385,574.20
  6. Step 6: Final answer
    x = 488,287.22

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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.