Home / 919,866.58-1,379,858.34-288,805.30

Finding the Fourth Proportional to 919,866.58, 1,379,858.34 and 288,805.30

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Solution

The fourth proportional to 919,866.58, 1,379,858.34 and 288,805.30 is: 433,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,866.58 : 1,379,858.34 = 288,805.30 : x
  2. Step 2: Convert to fraction form
    919,866.58/1,379,858.34 = 288,805.30/x
  3. Step 3: Cross multiply
    919,866.58x = 1,379,858.34 × 288,805.30
  4. Step 4: Simplify right side
    919,866.58x = 398,510,397,850.05
  5. Step 5: Solve for x
    x = 398,510,397,850.05/919,866.58
  6. Step 6: Final answer
    x = 433,226.30

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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.