Home / 868,072.99-1,197,940.55-480,913.57

Finding the Fourth Proportional to 868,072.99, 1,197,940.55 and 480,913.57

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Solution

The fourth proportional to 868,072.99, 1,197,940.55 and 480,913.57 is: 663,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,072.99 : 1,197,940.55 = 480,913.57 : x
  2. Step 2: Convert to fraction form
    868,072.99/1,197,940.55 = 480,913.57/x
  3. Step 3: Cross multiply
    868,072.99x = 1,197,940.55 × 480,913.57
  4. Step 4: Simplify right side
    868,072.99x = 576,105,860,558.56
  5. Step 5: Solve for x
    x = 576,105,860,558.56/868,072.99
  6. Step 6: Final answer
    x = 663,660.63

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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.