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Finding the Fourth Proportional to 684,452.44, 944,439.44 and 394,007.89

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Solution

The fourth proportional to 684,452.44, 944,439.44 and 394,007.89 is: 543,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,452.44 : 944,439.44 = 394,007.89 : x
  2. Step 2: Convert to fraction form
    684,452.44/944,439.44 = 394,007.89/x
  3. Step 3: Cross multiply
    684,452.44x = 944,439.44 × 394,007.89
  4. Step 4: Simplify right side
    684,452.44x = 372,116,586,264.98
  5. Step 5: Solve for x
    x = 372,116,586,264.98/684,452.44
  6. Step 6: Final answer
    x = 543,670.48

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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.