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Finding the Fourth Proportional to 472,255.78, 651,467.45 and 299,878.82

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Solution

The fourth proportional to 472,255.78, 651,467.45 and 299,878.82 is: 413,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,255.78 : 651,467.45 = 299,878.82 : x
  2. Step 2: Convert to fraction form
    472,255.78/651,467.45 = 299,878.82/x
  3. Step 3: Cross multiply
    472,255.78x = 651,467.45 × 299,878.82
  4. Step 4: Simplify right side
    472,255.78x = 195,361,290,174.41
  5. Step 5: Solve for x
    x = 195,361,290,174.41/472,255.78
  6. Step 6: Final answer
    x = 413,676.86

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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.