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Finding the Fourth Proportional to 599.51, 899.45 and 405.29

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Solution

The fourth proportional to 599.51, 899.45 and 405.29 is: 608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.51 : 899.45 = 405.29 : x
  2. Step 2: Convert to fraction form
    599.51/899.45 = 405.29/x
  3. Step 3: Cross multiply
    599.51x = 899.45 × 405.29
  4. Step 4: Simplify right side
    599.51x = 364,531.57
  5. Step 5: Solve for x
    x = 364,531.57/599.51
  6. Step 6: Final answer
    x = 608.05

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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.