Home / 396,924.40-547,756.32-215,637.04

Finding the Fourth Proportional to 396,924.40, 547,756.32 and 215,637.04

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Solution

The fourth proportional to 396,924.40, 547,756.32 and 215,637.04 is: 297,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,924.40 : 547,756.32 = 215,637.04 : x
  2. Step 2: Convert to fraction form
    396,924.40/547,756.32 = 215,637.04/x
  3. Step 3: Cross multiply
    396,924.40x = 547,756.32 × 215,637.04
  4. Step 4: Simplify right side
    396,924.40x = 118,116,551,486.09
  5. Step 5: Solve for x
    x = 118,116,551,486.09/396,924.40
  6. Step 6: Final answer
    x = 297,579.47

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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.