Home / 1,380,445.34-1,904,991.82-807,582.56

Finding the Fourth Proportional to 1,380,445.34, 1,904,991.82 and 807,582.56

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Solution

The fourth proportional to 1,380,445.34, 1,904,991.82 and 807,582.56 is: 1,114,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,445.34 : 1,904,991.82 = 807,582.56 : x
  2. Step 2: Convert to fraction form
    1,380,445.34/1,904,991.82 = 807,582.56/x
  3. Step 3: Cross multiply
    1,380,445.34x = 1,904,991.82 × 807,582.56
  4. Step 4: Simplify right side
    1,380,445.34x = 1,538,438,159,230.74
  5. Step 5: Solve for x
    x = 1,538,438,159,230.74/1,380,445.34
  6. Step 6: Final answer
    x = 1,114,450.62

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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.