Finding the Fourth Proportional to 1,683,642.45, 2,323,476.41 and 919,708.53
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Solution
The fourth proportional to 1,683,642.45, 2,323,476.41 and 919,708.53 is: 1,269,224.99
Step by Step Solution
- Step 1: Write the proportion equation
1,683,642.45 : 2,323,476.41 = 919,708.53 : x - Step 2: Convert to fraction form
1,683,642.45/2,323,476.41 = 919,708.53/x - Step 3: Cross multiply
1,683,642.45x = 2,323,476.41 × 919,708.53 - Step 4: Simplify right side
1,683,642.45x = 2,136,921,068,932.23 - Step 5: Solve for x
x = 2,136,921,068,932.23/1,683,642.45 - Step 6: Final answer
x = 1,269,224.99
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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.