Finding the Fourth Proportional to 561,423.60, 774,755.28 and 306,768.96
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Solution
The fourth proportional to 561,423.60, 774,755.28 and 306,768.96 is: 423,336.09
Step by Step Solution
- Step 1: Write the proportion equation
561,423.60 : 774,755.28 = 306,768.96 : x - Step 2: Convert to fraction form
561,423.60/774,755.28 = 306,768.96/x - Step 3: Cross multiply
561,423.60x = 774,755.28 × 306,768.96 - Step 4: Simplify right side
561,423.60x = 237,670,871,500.11 - Step 5: Solve for x
x = 237,670,871,500.11/561,423.60 - Step 6: Final answer
x = 423,336.09
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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.