Finding the Fourth Proportional to 1,272,605.54, 1,756,179.88 and 699,640.70
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Solution
The fourth proportional to 1,272,605.54, 1,756,179.88 and 699,640.70 is: 965,495.50
Step by Step Solution
- Step 1: Write the proportion equation
1,272,605.54 : 1,756,179.88 = 699,640.70 : x - Step 2: Convert to fraction form
1,272,605.54/1,756,179.88 = 699,640.70/x - Step 3: Cross multiply
1,272,605.54x = 1,756,179.88 × 699,640.70 - Step 4: Simplify right side
1,272,605.54x = 1,228,694,920,569.12 - Step 5: Solve for x
x = 1,228,694,920,569.12/1,272,605.54 - Step 6: Final answer
x = 965,495.50
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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.