Home / 763,529.52-1,144,297.98-426,556.56

Finding the Fourth Proportional to 763,529.52, 1,144,297.98 and 426,556.56

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Solution

The fourth proportional to 763,529.52, 1,144,297.98 and 426,556.56 is: 639,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,529.52 : 1,144,297.98 = 426,556.56 : x
  2. Step 2: Convert to fraction form
    763,529.52/1,144,297.98 = 426,556.56/x
  3. Step 3: Cross multiply
    763,529.52x = 1,144,297.98 × 426,556.56
  4. Step 4: Simplify right side
    763,529.52x = 488,107,809,963.75
  5. Step 5: Solve for x
    x = 488,107,809,963.75/763,529.52
  6. Step 6: Final answer
    x = 639,278.24

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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.