Home / 980,398.54-1,469,326.38-440,255.98

Finding the Fourth Proportional to 980,398.54, 1,469,326.38 and 440,255.98

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Solution

The fourth proportional to 980,398.54, 1,469,326.38 and 440,255.98 is: 659,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,398.54 : 1,469,326.38 = 440,255.98 : x
  2. Step 2: Convert to fraction form
    980,398.54/1,469,326.38 = 440,255.98/x
  3. Step 3: Cross multiply
    980,398.54x = 1,469,326.38 × 440,255.98
  4. Step 4: Simplify right side
    980,398.54x = 646,879,725,366.75
  5. Step 5: Solve for x
    x = 646,879,725,366.75/980,398.54
  6. Step 6: Final answer
    x = 659,813.02

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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.