Home / 990,075.69-1,361,051.78-851,749.83

Finding the Fourth Proportional to 990,075.69, 1,361,051.78 and 851,749.83

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Solution

The fourth proportional to 990,075.69, 1,361,051.78 and 851,749.83 is: 1,170,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,075.69 : 1,361,051.78 = 851,749.83 : x
  2. Step 2: Convert to fraction form
    990,075.69/1,361,051.78 = 851,749.83/x
  3. Step 3: Cross multiply
    990,075.69x = 1,361,051.78 × 851,749.83
  4. Step 4: Simplify right side
    990,075.69x = 1,159,275,617,977.45
  5. Step 5: Solve for x
    x = 1,159,275,617,977.45/990,075.69
  6. Step 6: Final answer
    x = 1,170,895.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.