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Finding the Fourth Proportional to 523,959.36, 723,063.93 and 285,495.36

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Solution

The fourth proportional to 523,959.36, 723,063.93 and 285,495.36 is: 393,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,959.36 : 723,063.93 = 285,495.36 : x
  2. Step 2: Convert to fraction form
    523,959.36/723,063.93 = 285,495.36/x
  3. Step 3: Cross multiply
    523,959.36x = 723,063.93 × 285,495.36
  4. Step 4: Simplify right side
    523,959.36x = 206,431,396,998.37
  5. Step 5: Solve for x
    x = 206,431,396,998.37/523,959.36
  6. Step 6: Final answer
    x = 393,983.60

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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.