Finding the Fourth Proportional to 389,400.58, 537,616.08 and 298,582.09
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Solution
The fourth proportional to 389,400.58, 537,616.08 and 298,582.09 is: 412,229.82
Step by Step Solution
- Step 1: Write the proportion equation
389,400.58 : 537,616.08 = 298,582.09 : x - Step 2: Convert to fraction form
389,400.58/537,616.08 = 298,582.09/x - Step 3: Cross multiply
389,400.58x = 537,616.08 × 298,582.09 - Step 4: Simplify right side
389,400.58x = 160,522,532,784.01 - Step 5: Solve for x
x = 160,522,532,784.01/389,400.58 - Step 6: Final answer
x = 412,229.82
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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.