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Finding the Fourth Proportional to 800,574.84, 1,201,007.76 and 379,846.80

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Solution

The fourth proportional to 800,574.84, 1,201,007.76 and 379,846.80 is: 569,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,574.84 : 1,201,007.76 = 379,846.80 : x
  2. Step 2: Convert to fraction form
    800,574.84/1,201,007.76 = 379,846.80/x
  3. Step 3: Cross multiply
    800,574.84x = 1,201,007.76 × 379,846.80
  4. Step 4: Simplify right side
    800,574.84x = 456,198,954,411.17
  5. Step 5: Solve for x
    x = 456,198,954,411.17/800,574.84
  6. Step 6: Final answer
    x = 569,839.24

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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.