Finding the Fourth Proportional to 1,312,381.36, 1,968,846.54 and 554,224.60
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Solution
The fourth proportional to 1,312,381.36, 1,968,846.54 and 554,224.60 is: 831,452.82
Step by Step Solution
- Step 1: Write the proportion equation
1,312,381.36 : 1,968,846.54 = 554,224.60 : x - Step 2: Convert to fraction form
1,312,381.36/1,968,846.54 = 554,224.60/x - Step 3: Cross multiply
1,312,381.36x = 1,968,846.54 × 554,224.60 - Step 4: Simplify right side
1,312,381.36x = 1,091,183,186,092.88 - Step 5: Solve for x
x = 1,091,183,186,092.88/1,312,381.36 - Step 6: Final answer
x = 831,452.82
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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.