Home / 2,660,233.80-3,990,933.90-862,811.40

Finding the Fourth Proportional to 2,660,233.80, 3,990,933.90 and 862,811.40

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Solution

The fourth proportional to 2,660,233.80, 3,990,933.90 and 862,811.40 is: 1,294,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,233.80 : 3,990,933.90 = 862,811.40 : x
  2. Step 2: Convert to fraction form
    2,660,233.80/3,990,933.90 = 862,811.40/x
  3. Step 3: Cross multiply
    2,660,233.80x = 3,990,933.90 × 862,811.40
  4. Step 4: Simplify right side
    2,660,233.80x = 3,443,423,265,566.46
  5. Step 5: Solve for x
    x = 3,443,423,265,566.46/2,660,233.80
  6. Step 6: Final answer
    x = 1,294,406.25

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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.