Home / 779,643.63-1,169,563.86-274,085.78

Finding the Fourth Proportional to 779,643.63, 1,169,563.86 and 274,085.78

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Solution

The fourth proportional to 779,643.63, 1,169,563.86 and 274,085.78 is: 411,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,643.63 : 1,169,563.86 = 274,085.78 : x
  2. Step 2: Convert to fraction form
    779,643.63/1,169,563.86 = 274,085.78/x
  3. Step 3: Cross multiply
    779,643.63x = 1,169,563.86 × 274,085.78
  4. Step 4: Simplify right side
    779,643.63x = 320,560,816,980.09
  5. Step 5: Solve for x
    x = 320,560,816,980.09/779,643.63
  6. Step 6: Final answer
    x = 411,163.26

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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.