Home / 1,078,216.80-1,617,325.20-742,293.60

Finding the Fourth Proportional to 1,078,216.80, 1,617,325.20 and 742,293.60

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Solution

The fourth proportional to 1,078,216.80, 1,617,325.20 and 742,293.60 is: 1,113,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,216.80 : 1,617,325.20 = 742,293.60 : x
  2. Step 2: Convert to fraction form
    1,078,216.80/1,617,325.20 = 742,293.60/x
  3. Step 3: Cross multiply
    1,078,216.80x = 1,617,325.20 × 742,293.60
  4. Step 4: Simplify right side
    1,078,216.80x = 1,200,530,145,078.72
  5. Step 5: Solve for x
    x = 1,200,530,145,078.72/1,078,216.80
  6. Step 6: Final answer
    x = 1,113,440.40

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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.