Finding the Fourth Proportional to 725,414.84, 1,001,096.78 and 403,138.52
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Solution
The fourth proportional to 725,414.84, 1,001,096.78 and 403,138.52 is: 556,344.66
Step by Step Solution
- Step 1: Write the proportion equation
725,414.84 : 1,001,096.78 = 403,138.52 : x - Step 2: Convert to fraction form
725,414.84/1,001,096.78 = 403,138.52/x - Step 3: Cross multiply
725,414.84x = 1,001,096.78 × 403,138.52 - Step 4: Simplify right side
725,414.84x = 403,580,674,265.97 - Step 5: Solve for x
x = 403,580,674,265.97/725,414.84 - Step 6: Final answer
x = 556,344.66
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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.