Home / 828,000.40-1,242,000.60-796,507.60

Finding the Fourth Proportional to 828,000.40, 1,242,000.60 and 796,507.60

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Solution

The fourth proportional to 828,000.40, 1,242,000.60 and 796,507.60 is: 1,194,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,000.40 : 1,242,000.60 = 796,507.60 : x
  2. Step 2: Convert to fraction form
    828,000.40/1,242,000.60 = 796,507.60/x
  3. Step 3: Cross multiply
    828,000.40x = 1,242,000.60 × 796,507.60
  4. Step 4: Simplify right side
    828,000.40x = 989,262,917,104.56
  5. Step 5: Solve for x
    x = 989,262,917,104.56/828,000.40
  6. Step 6: Final answer
    x = 1,194,761.40

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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.