Home / 445,916.80-668,875.20-268,969.60

Finding the Fourth Proportional to 445,916.80, 668,875.20 and 268,969.60

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Solution

The fourth proportional to 445,916.80, 668,875.20 and 268,969.60 is: 403,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,916.80 : 668,875.20 = 268,969.60 : x
  2. Step 2: Convert to fraction form
    445,916.80/668,875.20 = 268,969.60/x
  3. Step 3: Cross multiply
    445,916.80x = 668,875.20 × 268,969.60
  4. Step 4: Simplify right side
    445,916.80x = 179,907,094,993.92
  5. Step 5: Solve for x
    x = 179,907,094,993.92/445,916.80
  6. Step 6: Final answer
    x = 403,454.40

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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.