Home / 722,213.20-1,083,492.60-347,928.40

Finding the Fourth Proportional to 722,213.20, 1,083,492.60 and 347,928.40

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Solution

The fourth proportional to 722,213.20, 1,083,492.60 and 347,928.40 is: 521,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,213.20 : 1,083,492.60 = 347,928.40 : x
  2. Step 2: Convert to fraction form
    722,213.20/1,083,492.60 = 347,928.40/x
  3. Step 3: Cross multiply
    722,213.20x = 1,083,492.60 × 347,928.40
  4. Step 4: Simplify right side
    722,213.20x = 376,977,846,729.84
  5. Step 5: Solve for x
    x = 376,977,846,729.84/722,213.20
  6. Step 6: Final answer
    x = 521,975.85

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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.