Home / 1,326,250.05-1,989,763.20-427,673.58

Finding the Fourth Proportional to 1,326,250.05, 1,989,763.20 and 427,673.58

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Solution

The fourth proportional to 1,326,250.05, 1,989,763.20 and 427,673.58 is: 641,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,250.05 : 1,989,763.20 = 427,673.58 : x
  2. Step 2: Convert to fraction form
    1,326,250.05/1,989,763.20 = 427,673.58/x
  3. Step 3: Cross multiply
    1,326,250.05x = 1,989,763.20 × 427,673.58
  4. Step 4: Simplify right side
    1,326,250.05x = 850,969,151,096.26
  5. Step 5: Solve for x
    x = 850,969,151,096.26/1,326,250.05
  6. Step 6: Final answer
    x = 641,635.53

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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.