Finding the Fourth Proportional to 419,206.62, 578,504.97 and 228,219.96
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Solution
The fourth proportional to 419,206.62, 578,504.97 and 228,219.96 is: 314,943.45
Step by Step Solution
- Step 1: Write the proportion equation
419,206.62 : 578,504.97 = 228,219.96 : x - Step 2: Convert to fraction form
419,206.62/578,504.97 = 228,219.96/x - Step 3: Cross multiply
419,206.62x = 578,504.97 × 228,219.96 - Step 4: Simplify right side
419,206.62x = 132,026,381,113.20 - Step 5: Solve for x
x = 132,026,381,113.20/419,206.62 - Step 6: Final answer
x = 314,943.45
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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.