Finding the Fourth Proportional to 3,946,664.16, 5,920,557.06 and 1,214,438.18
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Solution
The fourth proportional to 3,946,664.16, 5,920,557.06 and 1,214,438.18 is: 1,821,829.84
Step by Step Solution
- Step 1: Write the proportion equation
3,946,664.16 : 5,920,557.06 = 1,214,438.18 : x - Step 2: Convert to fraction form
3,946,664.16/5,920,557.06 = 1,214,438.18/x - Step 3: Cross multiply
3,946,664.16x = 5,920,557.06 × 1,214,438.18 - Step 4: Simplify right side
3,946,664.16x = 7,190,150,515,483.91 - Step 5: Solve for x
x = 7,190,150,515,483.91/3,946,664.16 - Step 6: Final answer
x = 1,821,829.84
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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.