Home / 791,219.32-1,187,015.68-258,738.28

Finding the Fourth Proportional to 791,219.32, 1,187,015.68 and 258,738.28

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Solution

The fourth proportional to 791,219.32, 1,187,015.68 and 258,738.28 is: 388,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,219.32 : 1,187,015.68 = 258,738.28 : x
  2. Step 2: Convert to fraction form
    791,219.32/1,187,015.68 = 258,738.28/x
  3. Step 3: Cross multiply
    791,219.32x = 1,187,015.68 × 258,738.28
  4. Step 4: Simplify right side
    791,219.32x = 307,126,395,376.23
  5. Step 5: Solve for x
    x = 307,126,395,376.23/791,219.32
  6. Step 6: Final answer
    x = 388,168.47

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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.