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Finding the Fourth Proportional to 382,454.46, 528,003.36 and 291,092.94

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Solution

The fourth proportional to 382,454.46, 528,003.36 and 291,092.94 is: 401,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,454.46 : 528,003.36 = 291,092.94 : x
  2. Step 2: Convert to fraction form
    382,454.46/528,003.36 = 291,092.94/x
  3. Step 3: Cross multiply
    382,454.46x = 528,003.36 × 291,092.94
  4. Step 4: Simplify right side
    382,454.46x = 153,698,050,392.28
  5. Step 5: Solve for x
    x = 153,698,050,392.28/382,454.46
  6. Step 6: Final answer
    x = 401,872.81

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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.