Home / 718,181.42-1,076,940.92-212,561.60

Finding the Fourth Proportional to 718,181.42, 1,076,940.92 and 212,561.60

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Solution

The fourth proportional to 718,181.42, 1,076,940.92 and 212,561.60 is: 318,744.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,181.42 : 1,076,940.92 = 212,561.60 : x
  2. Step 2: Convert to fraction form
    718,181.42/1,076,940.92 = 212,561.60/x
  3. Step 3: Cross multiply
    718,181.42x = 1,076,940.92 × 212,561.60
  4. Step 4: Simplify right side
    718,181.42x = 228,916,278,613.16
  5. Step 5: Solve for x
    x = 228,916,278,613.16/718,181.42
  6. Step 6: Final answer
    x = 318,744.36

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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.