Finding the Fourth Proportional to 1,212,634.14, 1,673,147.38 and 689,303.68
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Solution
The fourth proportional to 1,212,634.14, 1,673,147.38 and 689,303.68 is: 951,075.52
Step by Step Solution
- Step 1: Write the proportion equation
1,212,634.14 : 1,673,147.38 = 689,303.68 : x - Step 2: Convert to fraction form
1,212,634.14/1,673,147.38 = 689,303.68/x - Step 3: Cross multiply
1,212,634.14x = 1,673,147.38 × 689,303.68 - Step 4: Simplify right side
1,212,634.14x = 1,153,306,646,216.36 - Step 5: Solve for x
x = 1,153,306,646,216.36/1,212,634.14 - Step 6: Final answer
x = 951,075.52
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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.