Home / 764,583.10-1,146,158.40-258,790.14

Finding the Fourth Proportional to 764,583.10, 1,146,158.40 and 258,790.14

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Solution

The fourth proportional to 764,583.10, 1,146,158.40 and 258,790.14 is: 387,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,583.10 : 1,146,158.40 = 258,790.14 : x
  2. Step 2: Convert to fraction form
    764,583.10/1,146,158.40 = 258,790.14/x
  3. Step 3: Cross multiply
    764,583.10x = 1,146,158.40 × 258,790.14
  4. Step 4: Simplify right side
    764,583.10x = 296,614,493,768.64
  5. Step 5: Solve for x
    x = 296,614,493,768.64/764,583.10
  6. Step 6: Final answer
    x = 387,942.78

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1.5x scale

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.