Finding the Fourth Proportional to 1,972,766.49, 2,722,209.93 and 1,145,678.63
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Solution
The fourth proportional to 1,972,766.49, 2,722,209.93 and 1,145,678.63 is: 1,580,915.81
Step by Step Solution
- Step 1: Write the proportion equation
1,972,766.49 : 2,722,209.93 = 1,145,678.63 : x - Step 2: Convert to fraction form
1,972,766.49/2,722,209.93 = 1,145,678.63/x - Step 3: Cross multiply
1,972,766.49x = 2,722,209.93 × 1,145,678.63 - Step 4: Simplify right side
1,972,766.49x = 3,118,777,744,876.18 - Step 5: Solve for x
x = 3,118,777,744,876.18/1,972,766.49 - Step 6: Final answer
x = 1,580,915.81
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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.