Home / 389,730.09-537,872.90-324,203.16

Finding the Fourth Proportional to 389,730.09, 537,872.90 and 324,203.16

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Solution

The fourth proportional to 389,730.09, 537,872.90 and 324,203.16 is: 447,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,730.09 : 537,872.90 = 324,203.16 : x
  2. Step 2: Convert to fraction form
    389,730.09/537,872.90 = 324,203.16/x
  3. Step 3: Cross multiply
    389,730.09x = 537,872.90 × 324,203.16
  4. Step 4: Simplify right side
    389,730.09x = 174,380,094,668.87
  5. Step 5: Solve for x
    x = 174,380,094,668.87/389,730.09
  6. Step 6: Final answer
    x = 447,438.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.