Finding the Fourth Proportional to 527,638.41, 728,176.73 and 298,116.09
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Solution
The fourth proportional to 527,638.41, 728,176.73 and 298,116.09 is: 411,420.39
Step by Step Solution
- Step 1: Write the proportion equation
527,638.41 : 728,176.73 = 298,116.09 : x - Step 2: Convert to fraction form
527,638.41/728,176.73 = 298,116.09/x - Step 3: Cross multiply
527,638.41x = 728,176.73 × 298,116.09 - Step 4: Simplify right side
527,638.41x = 217,081,198,086.01 - Step 5: Solve for x
x = 217,081,198,086.01/527,638.41 - Step 6: Final answer
x = 411,420.39
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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.