Home / 811,513.22-1,119,972.33-467,361.44

Finding the Fourth Proportional to 811,513.22, 1,119,972.33 and 467,361.44

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Solution

The fourth proportional to 811,513.22, 1,119,972.33 and 467,361.44 is: 645,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,513.22 : 1,119,972.33 = 467,361.44 : x
  2. Step 2: Convert to fraction form
    811,513.22/1,119,972.33 = 467,361.44/x
  3. Step 3: Cross multiply
    811,513.22x = 1,119,972.33 × 467,361.44
  4. Step 4: Simplify right side
    811,513.22x = 523,431,880,908.96
  5. Step 5: Solve for x
    x = 523,431,880,908.96/811,513.22
  6. Step 6: Final answer
    x = 645,007.21

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1.5x scale

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.