Finding the Fourth Proportional to 708,126.78, 977,202.63 and 385,839.54
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Solution
The fourth proportional to 708,126.78, 977,202.63 and 385,839.54 is: 532,451.85
Step by Step Solution
- Step 1: Write the proportion equation
708,126.78 : 977,202.63 = 385,839.54 : x - Step 2: Convert to fraction form
708,126.78/977,202.63 = 385,839.54/x - Step 3: Cross multiply
708,126.78x = 977,202.63 × 385,839.54 - Step 4: Simplify right side
708,126.78x = 377,043,413,245.99 - Step 5: Solve for x
x = 377,043,413,245.99/708,126.78 - Step 6: Final answer
x = 532,451.85
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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.