Home / 1,284,272.60-1,926,984.90-443,427.80

Finding the Fourth Proportional to 1,284,272.60, 1,926,984.90 and 443,427.80

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Solution

The fourth proportional to 1,284,272.60, 1,926,984.90 and 443,427.80 is: 665,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,272.60 : 1,926,984.90 = 443,427.80 : x
  2. Step 2: Convert to fraction form
    1,284,272.60/1,926,984.90 = 443,427.80/x
  3. Step 3: Cross multiply
    1,284,272.60x = 1,926,984.90 × 443,427.80
  4. Step 4: Simplify right side
    1,284,272.60x = 854,478,674,840.22
  5. Step 5: Solve for x
    x = 854,478,674,840.22/1,284,272.60
  6. Step 6: Final answer
    x = 665,340.58

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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.