Home / 1,284,274.60-1,926,987.90-443,429.80

Finding the Fourth Proportional to 1,284,274.60, 1,926,987.90 and 443,429.80

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Solution

The fourth proportional to 1,284,274.60, 1,926,987.90 and 443,429.80 is: 665,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,274.60 : 1,926,987.90 = 443,429.80 : x
  2. Step 2: Convert to fraction form
    1,284,274.60/1,926,987.90 = 443,429.80/x
  3. Step 3: Cross multiply
    1,284,274.60x = 1,926,987.90 × 443,429.80
  4. Step 4: Simplify right side
    1,284,274.60x = 854,483,859,099.42
  5. Step 5: Solve for x
    x = 854,483,859,099.42/1,284,274.60
  6. Step 6: Final answer
    x = 665,343.58

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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.