Finding the Fourth Proportional to 1,821,260.25, 2,513,668.14 and 1,086,261.66
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Solution
The fourth proportional to 1,821,260.25, 2,513,668.14 and 1,086,261.66 is: 1,499,237.31
Step by Step Solution
- Step 1: Write the proportion equation
1,821,260.25 : 2,513,668.14 = 1,086,261.66 : x - Step 2: Convert to fraction form
1,821,260.25/2,513,668.14 = 1,086,261.66/x - Step 3: Cross multiply
1,821,260.25x = 2,513,668.14 × 1,086,261.66 - Step 4: Simplify right side
1,821,260.25x = 2,730,501,326,445.51 - Step 5: Solve for x
x = 2,730,501,326,445.51/1,821,260.25 - Step 6: Final answer
x = 1,499,237.31
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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.