Finding the Fourth Proportional to 516,335.81, 712,344.42 and 380,691.68
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Solution
The fourth proportional to 516,335.81, 712,344.42 and 380,691.68 is: 525,207.80
Step by Step Solution
- Step 1: Write the proportion equation
516,335.81 : 712,344.42 = 380,691.68 : x - Step 2: Convert to fraction form
516,335.81/712,344.42 = 380,691.68/x - Step 3: Cross multiply
516,335.81x = 712,344.42 × 380,691.68 - Step 4: Simplify right side
516,335.81x = 271,183,590,426.70 - Step 5: Solve for x
x = 271,183,590,426.70/516,335.81 - Step 6: Final answer
x = 525,207.80
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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.