Home / 405,964.80-608,964.48-125,487.36

Finding the Fourth Proportional to 405,964.80, 608,964.48 and 125,487.36

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Solution

The fourth proportional to 405,964.80, 608,964.48 and 125,487.36 is: 188,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,964.80 : 608,964.48 = 125,487.36 : x
  2. Step 2: Convert to fraction form
    405,964.80/608,964.48 = 125,487.36/x
  3. Step 3: Cross multiply
    405,964.80x = 608,964.48 × 125,487.36
  4. Step 4: Simplify right side
    405,964.80x = 76,417,344,928.97
  5. Step 5: Solve for x
    x = 76,417,344,928.97/405,964.80
  6. Step 6: Final answer
    x = 188,236.38

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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.