Home / 672,266.08-1,007,636.40-419,659.38

Finding the Fourth Proportional to 672,266.08, 1,007,636.40 and 419,659.38

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Solution

The fourth proportional to 672,266.08, 1,007,636.40 and 419,659.38 is: 629,012.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,266.08 : 1,007,636.40 = 419,659.38 : x
  2. Step 2: Convert to fraction form
    672,266.08/1,007,636.40 = 419,659.38/x
  3. Step 3: Cross multiply
    672,266.08x = 1,007,636.40 × 419,659.38
  4. Step 4: Simplify right side
    672,266.08x = 422,864,059,752.95
  5. Step 5: Solve for x
    x = 422,864,059,752.95/672,266.08
  6. Step 6: Final answer
    x = 629,012.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.