Home / 719,059.20-1,078,977.60-319,761.60

Finding the Fourth Proportional to 719,059.20, 1,078,977.60 and 319,761.60

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Solution

The fourth proportional to 719,059.20, 1,078,977.60 and 319,761.60 is: 479,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,059.20 : 1,078,977.60 = 319,761.60 : x
  2. Step 2: Convert to fraction form
    719,059.20/1,078,977.60 = 319,761.60/x
  3. Step 3: Cross multiply
    719,059.20x = 1,078,977.60 × 319,761.60
  4. Step 4: Simplify right side
    719,059.20x = 345,015,603,740.16
  5. Step 5: Solve for x
    x = 345,015,603,740.16/719,059.20
  6. Step 6: Final answer
    x = 479,815.30

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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.