Home / 1,428,930.78-1,971,027.50-847,742.44

Finding the Fourth Proportional to 1,428,930.78, 1,971,027.50 and 847,742.44

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Solution

The fourth proportional to 1,428,930.78, 1,971,027.50 and 847,742.44 is: 1,169,352.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,930.78 : 1,971,027.50 = 847,742.44 : x
  2. Step 2: Convert to fraction form
    1,428,930.78/1,971,027.50 = 847,742.44/x
  3. Step 3: Cross multiply
    1,428,930.78x = 1,971,027.50 × 847,742.44
  4. Step 4: Simplify right side
    1,428,930.78x = 1,670,923,659,348.89
  5. Step 5: Solve for x
    x = 1,670,923,659,348.89/1,428,930.78
  6. Step 6: Final answer
    x = 1,169,352.42

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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.