Home / 1,055,998.40-1,581,847.20-655,409.60

Finding the Fourth Proportional to 1,055,998.40, 1,581,847.20 and 655,409.60

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Solution

The fourth proportional to 1,055,998.40, 1,581,847.20 and 655,409.60 is: 981,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,998.40 : 1,581,847.20 = 655,409.60 : x
  2. Step 2: Convert to fraction form
    1,055,998.40/1,581,847.20 = 655,409.60/x
  3. Step 3: Cross multiply
    1,055,998.40x = 1,581,847.20 × 655,409.60
  4. Step 4: Simplify right side
    1,055,998.40x = 1,036,757,840,613.12
  5. Step 5: Solve for x
    x = 1,036,757,840,613.12/1,055,998.40
  6. Step 6: Final answer
    x = 981,779.75

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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.