Finding the Fourth Proportional to 715,037.48, 986,708.10 and 392,684.84
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Solution
The fourth proportional to 715,037.48, 986,708.10 and 392,684.84 is: 541,881.12
Step by Step Solution
- Step 1: Write the proportion equation
715,037.48 : 986,708.10 = 392,684.84 : x - Step 2: Convert to fraction form
715,037.48/986,708.10 = 392,684.84/x - Step 3: Cross multiply
715,037.48x = 986,708.10 × 392,684.84 - Step 4: Simplify right side
715,037.48x = 387,465,312,375.20 - Step 5: Solve for x
x = 387,465,312,375.20/715,037.48 - Step 6: Final answer
x = 541,881.12
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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.