Finding the Fourth Proportional to 1,083,449.12, 1,495,408.62 and 720,888.26
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Solution
The fourth proportional to 1,083,449.12, 1,495,408.62 and 720,888.26 is: 994,991.36
Step by Step Solution
- Step 1: Write the proportion equation
1,083,449.12 : 1,495,408.62 = 720,888.26 : x - Step 2: Convert to fraction form
1,083,449.12/1,495,408.62 = 720,888.26/x - Step 3: Cross multiply
1,083,449.12x = 1,495,408.62 × 720,888.26 - Step 4: Simplify right side
1,083,449.12x = 1,078,022,518,060.80 - Step 5: Solve for x
x = 1,078,022,518,060.80/1,083,449.12 - Step 6: Final answer
x = 994,991.36
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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.