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Finding the Fourth Proportional to 655,927.48, 905,128.50 and 383,957.56

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Solution

The fourth proportional to 655,927.48, 905,128.50 and 383,957.56 is: 529,831.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,927.48 : 905,128.50 = 383,957.56 : x
  2. Step 2: Convert to fraction form
    655,927.48/905,128.50 = 383,957.56/x
  3. Step 3: Cross multiply
    655,927.48x = 905,128.50 × 383,957.56
  4. Step 4: Simplify right side
    655,927.48x = 347,530,930,346.46
  5. Step 5: Solve for x
    x = 347,530,930,346.46/655,927.48
  6. Step 6: Final answer
    x = 529,831.33

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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.