Home / 1,948,714.38-2,689,228.98-1,089,273.78

Finding the Fourth Proportional to 1,948,714.38, 2,689,228.98 and 1,089,273.78

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Solution

The fourth proportional to 1,948,714.38, 2,689,228.98 and 1,089,273.78 is: 1,503,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,714.38 : 2,689,228.98 = 1,089,273.78 : x
  2. Step 2: Convert to fraction form
    1,948,714.38/2,689,228.98 = 1,089,273.78/x
  3. Step 3: Cross multiply
    1,948,714.38x = 2,689,228.98 × 1,089,273.78
  4. Step 4: Simplify right side
    1,948,714.38x = 2,929,306,616,330.14
  5. Step 5: Solve for x
    x = 2,929,306,616,330.14/1,948,714.38
  6. Step 6: Final answer
    x = 1,503,199.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.