Home / 2,120,715-2,926,564.02-1,261,256.40

Finding the Fourth Proportional to 2,120,715, 2,926,564.02 and 1,261,256.40

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Solution

The fourth proportional to 2,120,715, 2,926,564.02 and 1,261,256.40 is: 1,740,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,715 : 2,926,564.02 = 1,261,256.40 : x
  2. Step 2: Convert to fraction form
    2,120,715/2,926,564.02 = 1,261,256.40/x
  3. Step 3: Cross multiply
    2,120,715x = 2,926,564.02 × 1,261,256.40
  4. Step 4: Simplify right side
    2,120,715x = 3,691,147,600,234.73
  5. Step 5: Solve for x
    x = 3,691,147,600,234.73/2,120,715
  6. Step 6: Final answer
    x = 1,740,520.34

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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.