Finding the Fourth Proportional to 419,042.79, 578,267.95 and 228,052.08
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Solution
The fourth proportional to 419,042.79, 578,267.95 and 228,052.08 is: 314,705.83
Step by Step Solution
- Step 1: Write the proportion equation
419,042.79 : 578,267.95 = 228,052.08 : x - Step 2: Convert to fraction form
419,042.79/578,267.95 = 228,052.08/x - Step 3: Cross multiply
419,042.79x = 578,267.95 × 228,052.08 - Step 4: Simplify right side
419,042.79x = 131,875,208,794.84 - Step 5: Solve for x
x = 131,875,208,794.84/419,042.79 - Step 6: Final answer
x = 314,705.83
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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.