Home / 454,559.55-681,839.30-431,829.94

Finding the Fourth Proportional to 454,559.55, 681,839.30 and 431,829.94

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Solution

The fourth proportional to 454,559.55, 681,839.30 and 431,829.94 is: 647,744.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,559.55 : 681,839.30 = 431,829.94 : x
  2. Step 2: Convert to fraction form
    454,559.55/681,839.30 = 431,829.94/x
  3. Step 3: Cross multiply
    454,559.55x = 681,839.30 × 431,829.94
  4. Step 4: Simplify right side
    454,559.55x = 294,438,624,662.07
  5. Step 5: Solve for x
    x = 294,438,624,662.07/454,559.55
  6. Step 6: Final answer
    x = 647,744.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.