Finding the Fourth Proportional to 621,691.96, 857,966.42 and 367,037.68
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Solution
The fourth proportional to 621,691.96, 857,966.42 and 367,037.68 is: 506,530.60
Step by Step Solution
- Step 1: Write the proportion equation
621,691.96 : 857,966.42 = 367,037.68 : x - Step 2: Convert to fraction form
621,691.96/857,966.42 = 367,037.68/x - Step 3: Cross multiply
621,691.96x = 857,966.42 × 367,037.68 - Step 4: Simplify right side
621,691.96x = 314,906,004,314.71 - Step 5: Solve for x
x = 314,906,004,314.71/621,691.96 - Step 6: Final answer
x = 506,530.60
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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.