Home / 385,534.20-579,683.70-324,708.60

Finding the Fourth Proportional to 385,534.20, 579,683.70 and 324,708.60

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Solution

The fourth proportional to 385,534.20, 579,683.70 and 324,708.60 is: 488,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,534.20 : 579,683.70 = 324,708.60 : x
  2. Step 2: Convert to fraction form
    385,534.20/579,683.70 = 324,708.60/x
  3. Step 3: Cross multiply
    385,534.20x = 579,683.70 × 324,708.60
  4. Step 4: Simplify right side
    385,534.20x = 188,228,282,669.82
  5. Step 5: Solve for x
    x = 188,228,282,669.82/385,534.20
  6. Step 6: Final answer
    x = 488,227.20

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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.