Home / 1,380,783.20-1,905,524.20-760,633.34

Finding the Fourth Proportional to 1,380,783.20, 1,905,524.20 and 760,633.34

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Solution

The fourth proportional to 1,380,783.20, 1,905,524.20 and 760,633.34 is: 1,049,697.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,783.20 : 1,905,524.20 = 760,633.34 : x
  2. Step 2: Convert to fraction form
    1,380,783.20/1,905,524.20 = 760,633.34/x
  3. Step 3: Cross multiply
    1,380,783.20x = 1,905,524.20 × 760,633.34
  4. Step 4: Simplify right side
    1,380,783.20x = 1,449,405,236,696.83
  5. Step 5: Solve for x
    x = 1,449,405,236,696.83/1,380,783.20
  6. Step 6: Final answer
    x = 1,049,697.91

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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.