Home / 1,821,390.20-2,732,217.90-699,459.20

Finding the Fourth Proportional to 1,821,390.20, 2,732,217.90 and 699,459.20

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Solution

The fourth proportional to 1,821,390.20, 2,732,217.90 and 699,459.20 is: 1,049,239.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,390.20 : 2,732,217.90 = 699,459.20 : x
  2. Step 2: Convert to fraction form
    1,821,390.20/2,732,217.90 = 699,459.20/x
  3. Step 3: Cross multiply
    1,821,390.20x = 2,732,217.90 × 699,459.20
  4. Step 4: Simplify right side
    1,821,390.20x = 1,911,074,946,559.68
  5. Step 5: Solve for x
    x = 1,911,074,946,559.68/1,821,390.20
  6. Step 6: Final answer
    x = 1,049,239.72

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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.