Home / 2,261,555.40-3,120,910.23-1,242,938.28

Finding the Fourth Proportional to 2,261,555.40, 3,120,910.23 and 1,242,938.28

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Solution

The fourth proportional to 2,261,555.40, 3,120,910.23 and 1,242,938.28 is: 1,715,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261,555.40 : 3,120,910.23 = 1,242,938.28 : x
  2. Step 2: Convert to fraction form
    2,261,555.40/3,120,910.23 = 1,242,938.28/x
  3. Step 3: Cross multiply
    2,261,555.40x = 3,120,910.23 × 1,242,938.28
  4. Step 4: Simplify right side
    2,261,555.40x = 3,879,098,793,310.60
  5. Step 5: Solve for x
    x = 3,879,098,793,310.60/2,261,555.40
  6. Step 6: Final answer
    x = 1,715,234.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.