Home / 663,229.90-995,038.58-213,940.79

Finding the Fourth Proportional to 663,229.90, 995,038.58 and 213,940.79

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Solution

The fourth proportional to 663,229.90, 995,038.58 and 213,940.79 is: 320,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,229.90 : 995,038.58 = 213,940.79 : x
  2. Step 2: Convert to fraction form
    663,229.90/995,038.58 = 213,940.79/x
  3. Step 3: Cross multiply
    663,229.90x = 995,038.58 × 213,940.79
  4. Step 4: Simplify right side
    663,229.90x = 212,879,339,885.68
  5. Step 5: Solve for x
    x = 212,879,339,885.68/663,229.90
  6. Step 6: Final answer
    x = 320,973.68

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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.