Home / 2,660,218.80-3,990,911.40-862,796.40

Finding the Fourth Proportional to 2,660,218.80, 3,990,911.40 and 862,796.40

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Solution

The fourth proportional to 2,660,218.80, 3,990,911.40 and 862,796.40 is: 1,294,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,218.80 : 3,990,911.40 = 862,796.40 : x
  2. Step 2: Convert to fraction form
    2,660,218.80/3,990,911.40 = 862,796.40/x
  3. Step 3: Cross multiply
    2,660,218.80x = 3,990,911.40 × 862,796.40
  4. Step 4: Simplify right side
    2,660,218.80x = 3,443,343,988,638.96
  5. Step 5: Solve for x
    x = 3,443,343,988,638.96/2,660,218.80
  6. Step 6: Final answer
    x = 1,294,383.75

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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.