Home / 876,940.80-1,315,411.20-698,481.60

Finding the Fourth Proportional to 876,940.80, 1,315,411.20 and 698,481.60

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Solution

The fourth proportional to 876,940.80, 1,315,411.20 and 698,481.60 is: 1,047,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,940.80 : 1,315,411.20 = 698,481.60 : x
  2. Step 2: Convert to fraction form
    876,940.80/1,315,411.20 = 698,481.60/x
  3. Step 3: Cross multiply
    876,940.80x = 1,315,411.20 × 698,481.60
  4. Step 4: Simplify right side
    876,940.80x = 918,790,519,633.92
  5. Step 5: Solve for x
    x = 918,790,519,633.92/876,940.80
  6. Step 6: Final answer
    x = 1,047,722.40

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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.