Home / 764,730.80-1,147,125.40-285,077.96

Finding the Fourth Proportional to 764,730.80, 1,147,125.40 and 285,077.96

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Solution

The fourth proportional to 764,730.80, 1,147,125.40 and 285,077.96 is: 427,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,730.80 : 1,147,125.40 = 285,077.96 : x
  2. Step 2: Convert to fraction form
    764,730.80/1,147,125.40 = 285,077.96/x
  3. Step 3: Cross multiply
    764,730.80x = 1,147,125.40 × 285,077.96
  4. Step 4: Simplify right side
    764,730.80x = 327,020,168,896.18
  5. Step 5: Solve for x
    x = 327,020,168,896.18/764,730.80
  6. Step 6: Final answer
    x = 427,627.83

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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.