Finding the Fourth Proportional to 1,017,129.22, 1,403,656.14 and 558,286.72
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Solution
The fourth proportional to 1,017,129.22, 1,403,656.14 and 558,286.72 is: 770,445.45
Step by Step Solution
- Step 1: Write the proportion equation
1,017,129.22 : 1,403,656.14 = 558,286.72 : x - Step 2: Convert to fraction form
1,017,129.22/1,403,656.14 = 558,286.72/x - Step 3: Cross multiply
1,017,129.22x = 1,403,656.14 × 558,286.72 - Step 4: Simplify right side
1,017,129.22x = 783,642,582,408.46 - Step 5: Solve for x
x = 783,642,582,408.46/1,017,129.22 - Step 6: Final answer
x = 770,445.45
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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.