Finding the Fourth Proportional to 1,090,951.36, 1,505,512.56 and 638,330.08
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Solution
The fourth proportional to 1,090,951.36, 1,505,512.56 and 638,330.08 is: 880,895.33
Step by Step Solution
- Step 1: Write the proportion equation
1,090,951.36 : 1,505,512.56 = 638,330.08 : x - Step 2: Convert to fraction form
1,090,951.36/1,505,512.56 = 638,330.08/x - Step 3: Cross multiply
1,090,951.36x = 1,505,512.56 × 638,330.08 - Step 4: Simplify right side
1,090,951.36x = 961,013,952,865.81 - Step 5: Solve for x
x = 961,013,952,865.81/1,090,951.36 - Step 6: Final answer
x = 880,895.33
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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.