Home / 1,998,497.80-2,996,871.90-800,021.80

Finding the Fourth Proportional to 1,998,497.80, 2,996,871.90 and 800,021.80

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Solution

The fourth proportional to 1,998,497.80, 2,996,871.90 and 800,021.80 is: 1,199,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,497.80 : 2,996,871.90 = 800,021.80 : x
  2. Step 2: Convert to fraction form
    1,998,497.80/2,996,871.90 = 800,021.80/x
  3. Step 3: Cross multiply
    1,998,497.80x = 2,996,871.90 × 800,021.80
  4. Step 4: Simplify right side
    1,998,497.80x = 2,397,562,851,807.42
  5. Step 5: Solve for x
    x = 2,397,562,851,807.42/1,998,497.80
  6. Step 6: Final answer
    x = 1,199,682.51

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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.