Home / 764,704.88-1,055,319.83-420,567.41

Finding the Fourth Proportional to 764,704.88, 1,055,319.83 and 420,567.41

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Solution

The fourth proportional to 764,704.88, 1,055,319.83 and 420,567.41 is: 580,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,704.88 : 1,055,319.83 = 420,567.41 : x
  2. Step 2: Convert to fraction form
    764,704.88/1,055,319.83 = 420,567.41/x
  3. Step 3: Cross multiply
    764,704.88x = 1,055,319.83 × 420,567.41
  4. Step 4: Simplify right side
    764,704.88x = 443,833,127,624.74
  5. Step 5: Solve for x
    x = 443,833,127,624.74/764,704.88
  6. Step 6: Final answer
    x = 580,397.93

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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.