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Finding the Fourth Proportional to 599.49, 899.52 and 438.51

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Solution

The fourth proportional to 599.49, 899.52 and 438.51 is: 657.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.49 : 899.52 = 438.51 : x
  2. Step 2: Convert to fraction form
    599.49/899.52 = 438.51/x
  3. Step 3: Cross multiply
    599.49x = 899.52 × 438.51
  4. Step 4: Simplify right side
    599.49x = 394,448.52
  5. Step 5: Solve for x
    x = 394,448.52/599.49
  6. Step 6: Final answer
    x = 657.97

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1.5x scale

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.