Home / 990,471.70-1,363,790.46-773,556.58

Finding the Fourth Proportional to 990,471.70, 1,363,790.46 and 773,556.58

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Solution

The fourth proportional to 990,471.70, 1,363,790.46 and 773,556.58 is: 1,065,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,471.70 : 1,363,790.46 = 773,556.58 : x
  2. Step 2: Convert to fraction form
    990,471.70/1,363,790.46 = 773,556.58/x
  3. Step 3: Cross multiply
    990,471.70x = 1,363,790.46 × 773,556.58
  4. Step 4: Simplify right side
    990,471.70x = 1,054,969,084,074.23
  5. Step 5: Solve for x
    x = 1,054,969,084,074.23/990,471.70
  6. Step 6: Final answer
    x = 1,065,117.85

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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.