Finding the Fourth Proportional to 838,092.70, 1,156,689.81 and 470,611.09
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Solution
The fourth proportional to 838,092.70, 1,156,689.81 and 470,611.09 is: 649,511.74
Step by Step Solution
- Step 1: Write the proportion equation
838,092.70 : 1,156,689.81 = 470,611.09 : x - Step 2: Convert to fraction form
838,092.70/1,156,689.81 = 470,611.09/x - Step 3: Cross multiply
838,092.70x = 1,156,689.81 × 470,611.09 - Step 4: Simplify right side
838,092.70x = 544,351,049,384.27 - Step 5: Solve for x
x = 544,351,049,384.27/838,092.70 - Step 6: Final answer
x = 649,511.74
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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.