Home / 823,235.78-1,233,952.86-423,900.52

Finding the Fourth Proportional to 823,235.78, 1,233,952.86 and 423,900.52

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Solution

The fourth proportional to 823,235.78, 1,233,952.86 and 423,900.52 is: 635,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,235.78 : 1,233,952.86 = 423,900.52 : x
  2. Step 2: Convert to fraction form
    823,235.78/1,233,952.86 = 423,900.52/x
  3. Step 3: Cross multiply
    823,235.78x = 1,233,952.86 × 423,900.52
  4. Step 4: Simplify right side
    823,235.78x = 523,073,252,839.72
  5. Step 5: Solve for x
    x = 523,073,252,839.72/823,235.78
  6. Step 6: Final answer
    x = 635,386.93

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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.