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Finding the Fourth Proportional to 557,392.33, 769,197.18 and 302,745.34

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Solution

The fourth proportional to 557,392.33, 769,197.18 and 302,745.34 is: 417,786.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,392.33 : 769,197.18 = 302,745.34 : x
  2. Step 2: Convert to fraction form
    557,392.33/769,197.18 = 302,745.34/x
  3. Step 3: Cross multiply
    557,392.33x = 769,197.18 × 302,745.34
  4. Step 4: Simplify right side
    557,392.33x = 232,870,859,863.15
  5. Step 5: Solve for x
    x = 232,870,859,863.15/557,392.33
  6. Step 6: Final answer
    x = 417,786.27

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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.