Home / 714,736.05-986,367.92-428,249.98

Finding the Fourth Proportional to 714,736.05, 986,367.92 and 428,249.98

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Solution

The fourth proportional to 714,736.05, 986,367.92 and 428,249.98 is: 591,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,736.05 : 986,367.92 = 428,249.98 : x
  2. Step 2: Convert to fraction form
    714,736.05/986,367.92 = 428,249.98/x
  3. Step 3: Cross multiply
    714,736.05x = 986,367.92 × 428,249.98
  4. Step 4: Simplify right side
    714,736.05x = 422,412,039,871.39
  5. Step 5: Solve for x
    x = 422,412,039,871.39/714,736.05
  6. Step 6: Final answer
    x = 591,004.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.