Home / 764,195.90-1,146,257.40-258,707.30

Finding the Fourth Proportional to 764,195.90, 1,146,257.40 and 258,707.30

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Solution

The fourth proportional to 764,195.90, 1,146,257.40 and 258,707.30 is: 388,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,195.90 : 1,146,257.40 = 258,707.30 : x
  2. Step 2: Convert to fraction form
    764,195.90/1,146,257.40 = 258,707.30/x
  3. Step 3: Cross multiply
    764,195.90x = 1,146,257.40 × 258,707.30
  4. Step 4: Simplify right side
    764,195.90x = 296,545,157,059.02
  5. Step 5: Solve for x
    x = 296,545,157,059.02/764,195.90
  6. Step 6: Final answer
    x = 388,048.61

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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.