Home / 1,010,679.72-1,394,100.90-647,728.44

Finding the Fourth Proportional to 1,010,679.72, 1,394,100.90 and 647,728.44

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Solution

The fourth proportional to 1,010,679.72, 1,394,100.90 and 647,728.44 is: 893,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,679.72 : 1,394,100.90 = 647,728.44 : x
  2. Step 2: Convert to fraction form
    1,010,679.72/1,394,100.90 = 647,728.44/x
  3. Step 3: Cross multiply
    1,010,679.72x = 1,394,100.90 × 647,728.44
  4. Step 4: Simplify right side
    1,010,679.72x = 902,998,801,159.60
  5. Step 5: Solve for x
    x = 902,998,801,159.60/1,010,679.72
  6. Step 6: Final answer
    x = 893,456.93

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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.