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Finding the Fourth Proportional to 439,385.58, 606,323.54 and 245,759.81

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Solution

The fourth proportional to 439,385.58, 606,323.54 and 245,759.81 is: 339,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,385.58 : 606,323.54 = 245,759.81 : x
  2. Step 2: Convert to fraction form
    439,385.58/606,323.54 = 245,759.81/x
  3. Step 3: Cross multiply
    439,385.58x = 606,323.54 × 245,759.81
  4. Step 4: Simplify right side
    439,385.58x = 149,009,955,571.71
  5. Step 5: Solve for x
    x = 149,009,955,571.71/439,385.58
  6. Step 6: Final answer
    x = 339,132.56

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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.