Home / 513,359.30-770,091.74-193,780.36

Finding the Fourth Proportional to 513,359.30, 770,091.74 and 193,780.36

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Solution

The fourth proportional to 513,359.30, 770,091.74 and 193,780.36 is: 290,690.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,359.30 : 770,091.74 = 193,780.36 : x
  2. Step 2: Convert to fraction form
    513,359.30/770,091.74 = 193,780.36/x
  3. Step 3: Cross multiply
    513,359.30x = 770,091.74 × 193,780.36
  4. Step 4: Simplify right side
    513,359.30x = 149,228,649,790.87
  5. Step 5: Solve for x
    x = 149,228,649,790.87/513,359.30
  6. Step 6: Final answer
    x = 290,690.46

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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.