Finding the Fourth Proportional to 378,503.84, 522,372.12 and 282,844.40
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Solution
The fourth proportional to 378,503.84, 522,372.12 and 282,844.40 is: 390,352.79
Step by Step Solution
- Step 1: Write the proportion equation
378,503.84 : 522,372.12 = 282,844.40 : x - Step 2: Convert to fraction form
378,503.84/522,372.12 = 282,844.40/x - Step 3: Cross multiply
378,503.84x = 522,372.12 × 282,844.40 - Step 4: Simplify right side
378,503.84x = 147,750,028,858.13 - Step 5: Solve for x
x = 147,750,028,858.13/378,503.84 - Step 6: Final answer
x = 390,352.79
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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.