Home / 789,949.45-1,185,047.09-257,346.51

Finding the Fourth Proportional to 789,949.45, 1,185,047.09 and 257,346.51

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Solution

The fourth proportional to 789,949.45, 1,185,047.09 and 257,346.51 is: 386,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,949.45 : 1,185,047.09 = 257,346.51 : x
  2. Step 2: Convert to fraction form
    789,949.45/1,185,047.09 = 257,346.51/x
  3. Step 3: Cross multiply
    789,949.45x = 1,185,047.09 × 257,346.51
  4. Step 4: Simplify right side
    789,949.45x = 304,967,732,797.16
  5. Step 5: Solve for x
    x = 304,967,732,797.16/789,949.45
  6. Step 6: Final answer
    x = 386,059.81

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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.