Home / 1,020,735.78-1,530,074.41-641,927.21

Finding the Fourth Proportional to 1,020,735.78, 1,530,074.41 and 641,927.21

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Solution

The fourth proportional to 1,020,735.78, 1,530,074.41 and 641,927.21 is: 962,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,735.78 : 1,530,074.41 = 641,927.21 : x
  2. Step 2: Convert to fraction form
    1,020,735.78/1,530,074.41 = 641,927.21/x
  3. Step 3: Cross multiply
    1,020,735.78x = 1,530,074.41 × 641,927.21
  4. Step 4: Simplify right side
    1,020,735.78x = 982,196,402,910.18
  5. Step 5: Solve for x
    x = 982,196,402,910.18/1,020,735.78
  6. Step 6: Final answer
    x = 962,243.54

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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.