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Finding the Fourth Proportional to 557,703, 769,609.08 and 303,048.72

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Solution

The fourth proportional to 557,703, 769,609.08 and 303,048.72 is: 418,195.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,703 : 769,609.08 = 303,048.72 : x
  2. Step 2: Convert to fraction form
    557,703/769,609.08 = 303,048.72/x
  3. Step 3: Cross multiply
    557,703x = 769,609.08 × 303,048.72
  4. Step 4: Simplify right side
    557,703x = 233,229,046,594.38
  5. Step 5: Solve for x
    x = 233,229,046,594.38/557,703
  6. Step 6: Final answer
    x = 418,195.79

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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.