Finding the Fourth Proportional to 1,135,039.08, 1,565,467.86 and 727,178.67
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Solution
The fourth proportional to 1,135,039.08, 1,565,467.86 and 727,178.67 is: 1,002,938.89
Step by Step Solution
- Step 1: Write the proportion equation
1,135,039.08 : 1,565,467.86 = 727,178.67 : x - Step 2: Convert to fraction form
1,135,039.08/1,565,467.86 = 727,178.67/x - Step 3: Cross multiply
1,135,039.08x = 1,565,467.86 × 727,178.67 - Step 4: Simplify right side
1,135,039.08x = 1,138,374,836,362.55 - Step 5: Solve for x
x = 1,138,374,836,362.55/1,135,039.08 - Step 6: Final answer
x = 1,002,938.89
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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.