Home / 718,181.79-1,076,941.49-212,561.97

Finding the Fourth Proportional to 718,181.79, 1,076,941.49 and 212,561.97

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Solution

The fourth proportional to 718,181.79, 1,076,941.49 and 212,561.97 is: 318,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,181.79 : 1,076,941.49 = 212,561.97 : x
  2. Step 2: Convert to fraction form
    718,181.79/1,076,941.49 = 212,561.97/x
  3. Step 3: Cross multiply
    718,181.79x = 1,076,941.49 × 212,561.97
  4. Step 4: Simplify right side
    718,181.79x = 228,916,803,626.33
  5. Step 5: Solve for x
    x = 228,916,803,626.33/718,181.79
  6. Step 6: Final answer
    x = 318,744.93

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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.