Home / 1,438,670.57-1,985,431.50-827,021.34

Finding the Fourth Proportional to 1,438,670.57, 1,985,431.50 and 827,021.34

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Solution

The fourth proportional to 1,438,670.57, 1,985,431.50 and 827,021.34 is: 1,141,327.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,670.57 : 1,985,431.50 = 827,021.34 : x
  2. Step 2: Convert to fraction form
    1,438,670.57/1,985,431.50 = 827,021.34/x
  3. Step 3: Cross multiply
    1,438,670.57x = 1,985,431.50 × 827,021.34
  4. Step 4: Simplify right side
    1,438,670.57x = 1,641,994,219,608.21
  5. Step 5: Solve for x
    x = 1,641,994,219,608.21/1,438,670.57
  6. Step 6: Final answer
    x = 1,141,327.46

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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.