Home / 2,174,516.80-3,261,775.20-678,414.40

Finding the Fourth Proportional to 2,174,516.80, 3,261,775.20 and 678,414.40

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Solution

The fourth proportional to 2,174,516.80, 3,261,775.20 and 678,414.40 is: 1,017,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174,516.80 : 3,261,775.20 = 678,414.40 : x
  2. Step 2: Convert to fraction form
    2,174,516.80/3,261,775.20 = 678,414.40/x
  3. Step 3: Cross multiply
    2,174,516.80x = 3,261,775.20 × 678,414.40
  4. Step 4: Simplify right side
    2,174,516.80x = 2,212,835,265,242.88
  5. Step 5: Solve for x
    x = 2,212,835,265,242.88/2,174,516.80
  6. Step 6: Final answer
    x = 1,017,621.60

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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.