Finding the Fourth Proportional to 1,378,343.79, 1,901,835.71 and 805,273.24
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Solution
The fourth proportional to 1,378,343.79, 1,901,835.71 and 805,273.24 is: 1,111,114.23
Step by Step Solution
- Step 1: Write the proportion equation
1,378,343.79 : 1,901,835.71 = 805,273.24 : x - Step 2: Convert to fraction form
1,378,343.79/1,901,835.71 = 805,273.24/x - Step 3: Cross multiply
1,378,343.79x = 1,901,835.71 × 805,273.24 - Step 4: Simplify right side
1,378,343.79x = 1,531,497,400,113.03 - Step 5: Solve for x
x = 1,531,497,400,113.03/1,378,343.79 - Step 6: Final answer
x = 1,111,114.23
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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.