Finding the Fourth Proportional to 1,403,685.68, 1,934,811.21 and 1,097,220.56
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Solution
The fourth proportional to 1,403,685.68, 1,934,811.21 and 1,097,220.56 is: 1,512,386.05
Step by Step Solution
- Step 1: Write the proportion equation
1,403,685.68 : 1,934,811.21 = 1,097,220.56 : x - Step 2: Convert to fraction form
1,403,685.68/1,934,811.21 = 1,097,220.56/x - Step 3: Cross multiply
1,403,685.68x = 1,934,811.21 × 1,097,220.56 - Step 4: Simplify right side
1,403,685.68x = 2,122,914,639,330.48 - Step 5: Solve for x
x = 2,122,914,639,330.48/1,403,685.68 - Step 6: Final answer
x = 1,512,386.05
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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.