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Finding the Fourth Proportional to 579,825.36, 869,699.16 and 159,066

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Solution

The fourth proportional to 579,825.36, 869,699.16 and 159,066 is: 238,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,825.36 : 869,699.16 = 159,066 : x
  2. Step 2: Convert to fraction form
    579,825.36/869,699.16 = 159,066/x
  3. Step 3: Cross multiply
    579,825.36x = 869,699.16 × 159,066
  4. Step 4: Simplify right side
    579,825.36x = 138,339,566,584.56
  5. Step 5: Solve for x
    x = 138,339,566,584.56/579,825.36
  6. Step 6: Final answer
    x = 238,588.33

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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.