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Finding the Fourth Proportional to 607,352.80, 911,007.60 and 274,928.80

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Solution

The fourth proportional to 607,352.80, 911,007.60 and 274,928.80 is: 412,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,352.80 : 911,007.60 = 274,928.80 : x
  2. Step 2: Convert to fraction form
    607,352.80/911,007.60 = 274,928.80/x
  3. Step 3: Cross multiply
    607,352.80x = 911,007.60 × 274,928.80
  4. Step 4: Simplify right side
    607,352.80x = 250,462,226,258.88
  5. Step 5: Solve for x
    x = 250,462,226,258.88/607,352.80
  6. Step 6: Final answer
    x = 412,383.42

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1.5x scale

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.