Finding the Fourth Proportional to 1,221,323.67, 1,685,394.09 and 705,060.11
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Solution
The fourth proportional to 1,221,323.67, 1,685,394.09 and 705,060.11 is: 972,964.15
Step by Step Solution
- Step 1: Write the proportion equation
1,221,323.67 : 1,685,394.09 = 705,060.11 : x - Step 2: Convert to fraction form
1,221,323.67/1,685,394.09 = 705,060.11/x - Step 3: Cross multiply
1,221,323.67x = 1,685,394.09 × 705,060.11 - Step 4: Simplify right side
1,221,323.67x = 1,188,304,146,702.24 - Step 5: Solve for x
x = 1,188,304,146,702.24/1,221,323.67 - Step 6: Final answer
x = 972,964.15
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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.