Home / 879,856.20-1,315,847.70-738,138.60

Finding the Fourth Proportional to 879,856.20, 1,315,847.70 and 738,138.60

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Solution

The fourth proportional to 879,856.20, 1,315,847.70 and 738,138.60 is: 1,103,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,856.20 : 1,315,847.70 = 738,138.60 : x
  2. Step 2: Convert to fraction form
    879,856.20/1,315,847.70 = 738,138.60/x
  3. Step 3: Cross multiply
    879,856.20x = 1,315,847.70 × 738,138.60
  4. Step 4: Simplify right side
    879,856.20x = 971,277,979,091.22
  5. Step 5: Solve for x
    x = 971,277,979,091.22/879,856.20
  6. Step 6: Final answer
    x = 1,103,905.36

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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.