Home / 1,405,357.56-1,939,391.20-760,777.58

Finding the Fourth Proportional to 1,405,357.56, 1,939,391.20 and 760,777.58

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Solution

The fourth proportional to 1,405,357.56, 1,939,391.20 and 760,777.58 is: 1,049,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,357.56 : 1,939,391.20 = 760,777.58 : x
  2. Step 2: Convert to fraction form
    1,405,357.56/1,939,391.20 = 760,777.58/x
  3. Step 3: Cross multiply
    1,405,357.56x = 1,939,391.20 × 760,777.58
  4. Step 4: Simplify right side
    1,405,357.56x = 1,475,445,349,608.75
  5. Step 5: Solve for x
    x = 1,475,445,349,608.75/1,405,357.56
  6. Step 6: Final answer
    x = 1,049,871.86

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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.