Home / 405,904.77-608,999.31-125,422.02

Finding the Fourth Proportional to 405,904.77, 608,999.31 and 125,422.02

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Solution

The fourth proportional to 405,904.77, 608,999.31 and 125,422.02 is: 188,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,904.77 : 608,999.31 = 125,422.02 : x
  2. Step 2: Convert to fraction form
    405,904.77/608,999.31 = 125,422.02/x
  3. Step 3: Cross multiply
    405,904.77x = 608,999.31 × 125,422.02
  4. Step 4: Simplify right side
    405,904.77x = 76,381,923,638.81
  5. Step 5: Solve for x
    x = 76,381,923,638.81/405,904.77
  6. Step 6: Final answer
    x = 188,176.96

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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.