Finding the Fourth Proportional to 1,278,702.99, 1,764,601.40 and 705,743.21
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Solution
The fourth proportional to 1,278,702.99, 1,764,601.40 and 705,743.21 is: 973,920.82
Step by Step Solution
- Step 1: Write the proportion equation
1,278,702.99 : 1,764,601.40 = 705,743.21 : x - Step 2: Convert to fraction form
1,278,702.99/1,764,601.40 = 705,743.21/x - Step 3: Cross multiply
1,278,702.99x = 1,764,601.40 × 705,743.21 - Step 4: Simplify right side
1,278,702.99x = 1,245,355,462,582.36 - Step 5: Solve for x
x = 1,245,355,462,582.36/1,278,702.99 - Step 6: Final answer
x = 973,920.82
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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.