Finding the Fourth Proportional to 1,570,643.26, 2,167,486.49 and 891,579.76
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Solution
The fourth proportional to 1,570,643.26, 2,167,486.49 and 891,579.76 is: 1,230,379.38
Step by Step Solution
- Step 1: Write the proportion equation
1,570,643.26 : 2,167,486.49 = 891,579.76 : x - Step 2: Convert to fraction form
1,570,643.26/2,167,486.49 = 891,579.76/x - Step 3: Cross multiply
1,570,643.26x = 2,167,486.49 × 891,579.76 - Step 4: Simplify right side
1,570,643.26x = 1,932,487,081,367.68 - Step 5: Solve for x
x = 1,932,487,081,367.68/1,570,643.26 - Step 6: Final answer
x = 1,230,379.38
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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.