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Finding the Fourth Proportional to 557,499.51, 769,284 and 328,006.31

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Solution

The fourth proportional to 557,499.51, 769,284 and 328,006.31 is: 452,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,499.51 : 769,284 = 328,006.31 : x
  2. Step 2: Convert to fraction form
    557,499.51/769,284 = 328,006.31/x
  3. Step 3: Cross multiply
    557,499.51x = 769,284 × 328,006.31
  4. Step 4: Simplify right side
    557,499.51x = 252,330,002,335.62
  5. Step 5: Solve for x
    x = 252,330,002,335.62/557,499.51
  6. Step 6: Final answer
    x = 452,610.27

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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.