Finding the Fourth Proportional to 4,320,512.90, 6,480,769.35 and 1,328,696.90
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Solution
The fourth proportional to 4,320,512.90, 6,480,769.35 and 1,328,696.90 is: 1,993,045.35
Step by Step Solution
- Step 1: Write the proportion equation
4,320,512.90 : 6,480,769.35 = 1,328,696.90 : x - Step 2: Convert to fraction form
4,320,512.90/6,480,769.35 = 1,328,696.90/x - Step 3: Cross multiply
4,320,512.90x = 6,480,769.35 × 1,328,696.90 - Step 4: Simplify right side
4,320,512.90x = 8,610,978,144,960.01 - Step 5: Solve for x
x = 8,610,978,144,960.01/4,320,512.90 - Step 6: Final answer
x = 1,993,045.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.