Finding the Fourth Proportional to 1,008,783.11, 1,392,109.36 and 549,887.63
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Solution
The fourth proportional to 1,008,783.11, 1,392,109.36 and 549,887.63 is: 758,838.76
Step by Step Solution
- Step 1: Write the proportion equation
1,008,783.11 : 1,392,109.36 = 549,887.63 : x - Step 2: Convert to fraction form
1,008,783.11/1,392,109.36 = 549,887.63/x - Step 3: Cross multiply
1,008,783.11x = 1,392,109.36 × 549,887.63 - Step 4: Simplify right side
1,008,783.11x = 765,503,715,618.44 - Step 5: Solve for x
x = 765,503,715,618.44/1,008,783.11 - Step 6: Final answer
x = 758,838.76
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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.