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Finding the Fourth Proportional to 599,994.43, 899,128.39 and 258,344.07

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Solution

The fourth proportional to 599,994.43, 899,128.39 and 258,344.07 is: 387,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,994.43 : 899,128.39 = 258,344.07 : x
  2. Step 2: Convert to fraction form
    599,994.43/899,128.39 = 258,344.07/x
  3. Step 3: Cross multiply
    599,994.43x = 899,128.39 × 258,344.07
  4. Step 4: Simplify right side
    599,994.43x = 232,284,487,725.15
  5. Step 5: Solve for x
    x = 232,284,487,725.15/599,994.43
  6. Step 6: Final answer
    x = 387,144.41

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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.