Finding the Fourth Proportional to 914,276.70, 1,371,415.05 and 778,974.30
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Solution
The fourth proportional to 914,276.70, 1,371,415.05 and 778,974.30 is: 1,168,461.45
Step by Step Solution
- Step 1: Write the proportion equation
914,276.70 : 1,371,415.05 = 778,974.30 : x - Step 2: Convert to fraction form
914,276.70/1,371,415.05 = 778,974.30/x - Step 3: Cross multiply
914,276.70x = 1,371,415.05 × 778,974.30 - Step 4: Simplify right side
914,276.70x = 1,068,297,078,583.22 - Step 5: Solve for x
x = 1,068,297,078,583.22/914,276.70 - Step 6: Final answer
x = 1,168,461.45
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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.