Home / 469,286.40-647,566.61-288,005.97

Finding the Fourth Proportional to 469,286.40, 647,566.61 and 288,005.97

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Solution

The fourth proportional to 469,286.40, 647,566.61 and 288,005.97 is: 397,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,286.40 : 647,566.61 = 288,005.97 : x
  2. Step 2: Convert to fraction form
    469,286.40/647,566.61 = 288,005.97/x
  3. Step 3: Cross multiply
    469,286.40x = 647,566.61 × 288,005.97
  4. Step 4: Simplify right side
    469,286.40x = 186,503,048,212.63
  5. Step 5: Solve for x
    x = 186,503,048,212.63/469,286.40
  6. Step 6: Final answer
    x = 397,418.40

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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.