Home / 919,561.82-1,379,341.38-288,524.84

Finding the Fourth Proportional to 919,561.82, 1,379,341.38 and 288,524.84

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Solution

The fourth proportional to 919,561.82, 1,379,341.38 and 288,524.84 is: 432,786.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,561.82 : 1,379,341.38 = 288,524.84 : x
  2. Step 2: Convert to fraction form
    919,561.82/1,379,341.38 = 288,524.84/x
  3. Step 3: Cross multiply
    919,561.82x = 1,379,341.38 × 288,524.84
  4. Step 4: Simplify right side
    919,561.82x = 397,974,250,969.88
  5. Step 5: Solve for x
    x = 397,974,250,969.88/919,561.82
  6. Step 6: Final answer
    x = 432,786.84

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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.