Finding the Fourth Proportional to 640,946.63, 884,408.09 and 368,961.97
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Solution
The fourth proportional to 640,946.63, 884,408.09 and 368,961.97 is: 509,110.95
Step by Step Solution
- Step 1: Write the proportion equation
640,946.63 : 884,408.09 = 368,961.97 : x - Step 2: Convert to fraction form
640,946.63/884,408.09 = 368,961.97/x - Step 3: Cross multiply
640,946.63x = 884,408.09 × 368,961.97 - Step 4: Simplify right side
640,946.63x = 326,312,947,117.09 - Step 5: Solve for x
x = 326,312,947,117.09/640,946.63 - Step 6: Final answer
x = 509,110.95
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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.