Home / 980,352.72-1,469,899.71-380,674.89

Finding the Fourth Proportional to 980,352.72, 1,469,899.71 and 380,674.89

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Solution

The fourth proportional to 980,352.72, 1,469,899.71 and 380,674.89 is: 570,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,352.72 : 1,469,899.71 = 380,674.89 : x
  2. Step 2: Convert to fraction form
    980,352.72/1,469,899.71 = 380,674.89/x
  3. Step 3: Cross multiply
    980,352.72x = 1,469,899.71 × 380,674.89
  4. Step 4: Simplify right side
    980,352.72x = 559,553,910,415.28
  5. Step 5: Solve for x
    x = 559,553,910,415.28/980,352.72
  6. Step 6: Final answer
    x = 570,767.95

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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.