Finding the Fourth Proportional to 1,688,497.86, 2,330,130.81 and 914,136.87
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Solution
The fourth proportional to 1,688,497.86, 2,330,130.81 and 914,136.87 is: 1,261,510.92
Step by Step Solution
- Step 1: Write the proportion equation
1,688,497.86 : 2,330,130.81 = 914,136.87 : x - Step 2: Convert to fraction form
1,688,497.86/2,330,130.81 = 914,136.87/x - Step 3: Cross multiply
1,688,497.86x = 2,330,130.81 × 914,136.87 - Step 4: Simplify right side
1,688,497.86x = 2,130,058,485,343.97 - Step 5: Solve for x
x = 2,130,058,485,343.97/1,688,497.86 - Step 6: Final answer
x = 1,261,510.92
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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.