Home / 764,216.40-1,146,288.15-258,727.80

Finding the Fourth Proportional to 764,216.40, 1,146,288.15 and 258,727.80

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Solution

The fourth proportional to 764,216.40, 1,146,288.15 and 258,727.80 is: 388,079.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,216.40 : 1,146,288.15 = 258,727.80 : x
  2. Step 2: Convert to fraction form
    764,216.40/1,146,288.15 = 258,727.80/x
  3. Step 3: Cross multiply
    764,216.40x = 1,146,288.15 × 258,727.80
  4. Step 4: Simplify right side
    764,216.40x = 296,576,611,215.57
  5. Step 5: Solve for x
    x = 296,576,611,215.57/764,216.40
  6. Step 6: Final answer
    x = 388,079.36

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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.