Home / 1,989,816.78-2,984,725.17-493,908.78

Finding the Fourth Proportional to 1,989,816.78, 2,984,725.17 and 493,908.78

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Solution

The fourth proportional to 1,989,816.78, 2,984,725.17 and 493,908.78 is: 740,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,816.78 : 2,984,725.17 = 493,908.78 : x
  2. Step 2: Convert to fraction form
    1,989,816.78/2,984,725.17 = 493,908.78/x
  3. Step 3: Cross multiply
    1,989,816.78x = 2,984,725.17 × 493,908.78
  4. Step 4: Simplify right side
    1,989,816.78x = 1,474,181,967,349.99
  5. Step 5: Solve for x
    x = 1,474,181,967,349.99/1,989,816.78
  6. Step 6: Final answer
    x = 740,863.17

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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.