Finding the Fourth Proportional to 1,801,108.09, 2,486,268.62 and 1,221,125.59
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Solution
The fourth proportional to 1,801,108.09, 2,486,268.62 and 1,221,125.59 is: 1,685,654.65
Step by Step Solution
- Step 1: Write the proportion equation
1,801,108.09 : 2,486,268.62 = 1,221,125.59 : x - Step 2: Convert to fraction form
1,801,108.09/2,486,268.62 = 1,221,125.59/x - Step 3: Cross multiply
1,801,108.09x = 2,486,268.62 × 1,221,125.59 - Step 4: Simplify right side
1,801,108.09x = 3,036,046,235,495.99 - Step 5: Solve for x
x = 3,036,046,235,495.99/1,801,108.09 - Step 6: Final answer
x = 1,685,654.65
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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.