Home / 385,569.20-579,736.20-324,743.60

Finding the Fourth Proportional to 385,569.20, 579,736.20 and 324,743.60

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Solution

The fourth proportional to 385,569.20, 579,736.20 and 324,743.60 is: 488,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,569.20 : 579,736.20 = 324,743.60 : x
  2. Step 2: Convert to fraction form
    385,569.20/579,736.20 = 324,743.60/x
  3. Step 3: Cross multiply
    385,569.20x = 579,736.20 × 324,743.60
  4. Step 4: Simplify right side
    385,569.20x = 188,265,620,638.32
  5. Step 5: Solve for x
    x = 188,265,620,638.32/385,569.20
  6. Step 6: Final answer
    x = 488,279.72

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1.5x scale

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.