Home / 687,255.24-1,030,468.70-308,107.41

Finding the Fourth Proportional to 687,255.24, 1,030,468.70 and 308,107.41

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Solution

The fourth proportional to 687,255.24, 1,030,468.70 and 308,107.41 is: 461,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,255.24 : 1,030,468.70 = 308,107.41 : x
  2. Step 2: Convert to fraction form
    687,255.24/1,030,468.70 = 308,107.41/x
  3. Step 3: Cross multiply
    687,255.24x = 1,030,468.70 × 308,107.41
  4. Step 4: Simplify right side
    687,255.24x = 317,495,039,149.08
  5. Step 5: Solve for x
    x = 317,495,039,149.08/687,255.24
  6. Step 6: Final answer
    x = 461,975.43

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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.