Home / 673,268.80-1,008,542.40-419,771.20

Finding the Fourth Proportional to 673,268.80, 1,008,542.40 and 419,771.20

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Solution

The fourth proportional to 673,268.80, 1,008,542.40 and 419,771.20 is: 628,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,268.80 : 1,008,542.40 = 419,771.20 : x
  2. Step 2: Convert to fraction form
    673,268.80/1,008,542.40 = 419,771.20/x
  3. Step 3: Cross multiply
    673,268.80x = 1,008,542.40 × 419,771.20
  4. Step 4: Simplify right side
    673,268.80x = 423,357,053,498.88
  5. Step 5: Solve for x
    x = 423,357,053,498.88/673,268.80
  6. Step 6: Final answer
    x = 628,808.37

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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.