Home / 764,578.83-1,146,425.45-258,970.35

Finding the Fourth Proportional to 764,578.83, 1,146,425.45 and 258,970.35

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Solution

The fourth proportional to 764,578.83, 1,146,425.45 and 258,970.35 is: 388,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,578.83 : 1,146,425.45 = 258,970.35 : x
  2. Step 2: Convert to fraction form
    764,578.83/1,146,425.45 = 258,970.35/x
  3. Step 3: Cross multiply
    764,578.83x = 1,146,425.45 × 258,970.35
  4. Step 4: Simplify right side
    764,578.83x = 296,890,198,740.56
  5. Step 5: Solve for x
    x = 296,890,198,740.56/764,578.83
  6. Step 6: Final answer
    x = 388,305.54

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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.