Home / 419,973.54-629,962.68-104,430.48

Finding the Fourth Proportional to 419,973.54, 629,962.68 and 104,430.48

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Solution

The fourth proportional to 419,973.54, 629,962.68 and 104,430.48 is: 156,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,973.54 : 629,962.68 = 104,430.48 : x
  2. Step 2: Convert to fraction form
    419,973.54/629,962.68 = 104,430.48/x
  3. Step 3: Cross multiply
    419,973.54x = 629,962.68 × 104,430.48
  4. Step 4: Simplify right side
    419,973.54x = 65,787,305,054.49
  5. Step 5: Solve for x
    x = 65,787,305,054.49/419,973.54
  6. Step 6: Final answer
    x = 156,646.31

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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.