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Finding the Fourth Proportional to 662,745.60, 994,118.40 and 289,497.60

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Solution

The fourth proportional to 662,745.60, 994,118.40 and 289,497.60 is: 434,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,745.60 : 994,118.40 = 289,497.60 : x
  2. Step 2: Convert to fraction form
    662,745.60/994,118.40 = 289,497.60/x
  3. Step 3: Cross multiply
    662,745.60x = 994,118.40 × 289,497.60
  4. Step 4: Simplify right side
    662,745.60x = 287,794,890,915.84
  5. Step 5: Solve for x
    x = 287,794,890,915.84/662,745.60
  6. Step 6: Final answer
    x = 434,246.40

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Similar ratio
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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.