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Finding the Fourth Proportional to 557,857.82, 769,848.89 and 303,209.62

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Solution

The fourth proportional to 557,857.82, 769,848.89 and 303,209.62 is: 418,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,857.82 : 769,848.89 = 303,209.62 : x
  2. Step 2: Convert to fraction form
    557,857.82/769,848.89 = 303,209.62/x
  3. Step 3: Cross multiply
    557,857.82x = 769,848.89 × 303,209.62
  4. Step 4: Simplify right side
    557,857.82x = 233,425,585,953.65
  5. Step 5: Solve for x
    x = 233,425,585,953.65/557,857.82
  6. Step 6: Final answer
    x = 418,432.04

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1.5x scale

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.