Finding the Fourth Proportional to 862,901.04, 1,190,887.68 and 644,731.14
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Solution
The fourth proportional to 862,901.04, 1,190,887.68 and 644,731.14 is: 889,791.92
Step by Step Solution
- Step 1: Write the proportion equation
862,901.04 : 1,190,887.68 = 644,731.14 : x - Step 2: Convert to fraction form
862,901.04/1,190,887.68 = 644,731.14/x - Step 3: Cross multiply
862,901.04x = 1,190,887.68 × 644,731.14 - Step 4: Simplify right side
862,901.04x = 767,802,371,538.36 - Step 5: Solve for x
x = 767,802,371,538.36/862,901.04 - Step 6: Final answer
x = 889,791.92
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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.