Finding the Fourth Proportional to 3,180,713.68, 4,389,403.96 and 1,730,419.49
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Solution
The fourth proportional to 3,180,713.68, 4,389,403.96 and 1,730,419.49 is: 2,387,989.28
Step by Step Solution
- Step 1: Write the proportion equation
3,180,713.68 : 4,389,403.96 = 1,730,419.49 : x - Step 2: Convert to fraction form
3,180,713.68/4,389,403.96 = 1,730,419.49/x - Step 3: Cross multiply
3,180,713.68x = 4,389,403.96 × 1,730,419.49 - Step 4: Simplify right side
3,180,713.68x = 7,595,510,161,867.18 - Step 5: Solve for x
x = 7,595,510,161,867.18/3,180,713.68 - Step 6: Final answer
x = 2,387,989.28
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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.