Finding the Fourth Proportional to 738,154.17, 1,018,652.76 and 398,622.42
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Solution
The fourth proportional to 738,154.17, 1,018,652.76 and 398,622.42 is: 550,098.94
Step by Step Solution
- Step 1: Write the proportion equation
738,154.17 : 1,018,652.76 = 398,622.42 : x - Step 2: Convert to fraction form
738,154.17/1,018,652.76 = 398,622.42/x - Step 3: Cross multiply
738,154.17x = 1,018,652.76 × 398,622.42 - Step 4: Simplify right side
738,154.17x = 406,057,828,330.88 - Step 5: Solve for x
x = 406,057,828,330.88/738,154.17 - Step 6: Final answer
x = 550,098.94
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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.