Finding the Fourth Proportional to 1,681,588.08, 2,320,640.91 and 917,690.94
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Solution
The fourth proportional to 1,681,588.08, 2,320,640.91 and 917,690.94 is: 1,266,440.43
Step by Step Solution
- Step 1: Write the proportion equation
1,681,588.08 : 2,320,640.91 = 917,690.94 : x - Step 2: Convert to fraction form
1,681,588.08/2,320,640.91 = 917,690.94/x - Step 3: Cross multiply
1,681,588.08x = 2,320,640.91 × 917,690.94 - Step 4: Simplify right side
1,681,588.08x = 2,129,631,138,100.36 - Step 5: Solve for x
x = 2,129,631,138,100.36/1,681,588.08 - Step 6: Final answer
x = 1,266,440.43
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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.