Finding the Fourth Proportional to 878,959.92, 1,318,478.18 and 430,058.73
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Solution
The fourth proportional to 878,959.92, 1,318,478.18 and 430,058.73 is: 645,106.83
Step by Step Solution
- Step 1: Write the proportion equation
878,959.92 : 1,318,478.18 = 430,058.73 : x - Step 2: Convert to fraction form
878,959.92/1,318,478.18 = 430,058.73/x - Step 3: Cross multiply
878,959.92x = 1,318,478.18 × 430,058.73 - Step 4: Simplify right side
878,959.92x = 567,023,049,473.22 - Step 5: Solve for x
x = 567,023,049,473.22/878,959.92 - Step 6: Final answer
x = 645,106.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.