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Finding the Fourth Proportional to 2,774,364, 4,161,546 and 779,820

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Solution

The fourth proportional to 2,774,364, 4,161,546 and 779,820 is: 1,169,730

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774,364 : 4,161,546 = 779,820 : x
  2. Step 2: Convert to fraction form
    2,774,364/4,161,546 = 779,820/x
  3. Step 3: Cross multiply
    2,774,364x = 4,161,546 × 779,820
  4. Step 4: Simplify right side
    2,774,364x = 3,245,256,801,720
  5. Step 5: Solve for x
    x = 3,245,256,801,720/2,774,364
  6. Step 6: Final answer
    x = 1,169,730

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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.