Finding the Fourth Proportional to 1,380,622.08, 1,905,387.12 and 807,625.92
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Solution
The fourth proportional to 1,380,622.08, 1,905,387.12 and 807,625.92 is: 1,114,599.03
Step by Step Solution
- Step 1: Write the proportion equation
1,380,622.08 : 1,905,387.12 = 807,625.92 : x - Step 2: Convert to fraction form
1,380,622.08/1,905,387.12 = 807,625.92/x - Step 3: Cross multiply
1,380,622.08x = 1,905,387.12 × 807,625.92 - Step 4: Simplify right side
1,380,622.08x = 1,538,840,025,746.15 - Step 5: Solve for x
x = 1,538,840,025,746.15/1,380,622.08 - Step 6: Final answer
x = 1,114,599.03
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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.