Home / 987,256.40-1,480,447.20-454,940.60

Finding the Fourth Proportional to 987,256.40, 1,480,447.20 and 454,940.60

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Solution

The fourth proportional to 987,256.40, 1,480,447.20 and 454,940.60 is: 682,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,256.40 : 1,480,447.20 = 454,940.60 : x
  2. Step 2: Convert to fraction form
    987,256.40/1,480,447.20 = 454,940.60/x
  3. Step 3: Cross multiply
    987,256.40x = 1,480,447.20 × 454,940.60
  4. Step 4: Simplify right side
    987,256.40x = 673,515,537,436.32
  5. Step 5: Solve for x
    x = 673,515,537,436.32/987,256.40
  6. Step 6: Final answer
    x = 682,209.34

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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.