Finding the Fourth Proportional to 663,867.84, 916,133.44 and 377,387.92
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Solution
The fourth proportional to 663,867.84, 916,133.44 and 377,387.92 is: 520,792.95
Step by Step Solution
- Step 1: Write the proportion equation
663,867.84 : 916,133.44 = 377,387.92 : x - Step 2: Convert to fraction form
663,867.84/916,133.44 = 377,387.92/x - Step 3: Cross multiply
663,867.84x = 916,133.44 × 377,387.92 - Step 4: Simplify right side
663,867.84x = 345,737,693,364.05 - Step 5: Solve for x
x = 345,737,693,364.05/663,867.84 - Step 6: Final answer
x = 520,792.95
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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.