Finding the Fourth Proportional to 586,348.21, 809,162.09 and 318,076.21
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Solution
The fourth proportional to 586,348.21, 809,162.09 and 318,076.21 is: 438,946.02
Step by Step Solution
- Step 1: Write the proportion equation
586,348.21 : 809,162.09 = 318,076.21 : x - Step 2: Convert to fraction form
586,348.21/809,162.09 = 318,076.21/x - Step 3: Cross multiply
586,348.21x = 809,162.09 × 318,076.21 - Step 4: Simplify right side
586,348.21x = 257,375,210,862.88 - Step 5: Solve for x
x = 257,375,210,862.88/586,348.21 - Step 6: Final answer
x = 438,946.02
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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.