Home / 389,733.72-537,877.90-324,206.78

Finding the Fourth Proportional to 389,733.72, 537,877.90 and 324,206.78

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Solution

The fourth proportional to 389,733.72, 537,877.90 and 324,206.78 is: 447,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,733.72 : 537,877.90 = 324,206.78 : x
  2. Step 2: Convert to fraction form
    389,733.72/537,877.90 = 324,206.78/x
  3. Step 3: Cross multiply
    389,733.72x = 537,877.90 × 324,206.78
  4. Step 4: Simplify right side
    389,733.72x = 174,383,661,992.16
  5. Step 5: Solve for x
    x = 174,383,661,992.16/389,733.72
  6. Step 6: Final answer
    x = 447,443.10

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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.