Finding the Fourth Proportional to 1,255,486.36, 1,730,944.92 and 813,173.96
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Solution
The fourth proportional to 1,255,486.36, 1,730,944.92 and 813,173.96 is: 1,121,126.74
Step by Step Solution
- Step 1: Write the proportion equation
1,255,486.36 : 1,730,944.92 = 813,173.96 : x - Step 2: Convert to fraction form
1,255,486.36/1,730,944.92 = 813,173.96/x - Step 3: Cross multiply
1,255,486.36x = 1,730,944.92 × 813,173.96 - Step 4: Simplify right side
1,255,486.36x = 1,407,559,335,138.28 - Step 5: Solve for x
x = 1,407,559,335,138.28/1,255,486.36 - Step 6: Final answer
x = 1,121,126.74
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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.