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Finding the Fourth Proportional to 672,877.44, 927,400.32 and 491,290.56

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Solution

The fourth proportional to 672,877.44, 927,400.32 and 491,290.56 is: 677,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,877.44 : 927,400.32 = 491,290.56 : x
  2. Step 2: Convert to fraction form
    672,877.44/927,400.32 = 491,290.56/x
  3. Step 3: Cross multiply
    672,877.44x = 927,400.32 × 491,290.56
  4. Step 4: Simplify right side
    672,877.44x = 455,623,022,556.98
  5. Step 5: Solve for x
    x = 455,623,022,556.98/672,877.44
  6. Step 6: Final answer
    x = 677,126.32

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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.