Finding the Fourth Proportional to 665,771.84, 998,909.33 and 399,717.80
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Solution
The fourth proportional to 665,771.84, 998,909.33 and 399,717.80 is: 599,727.74
Step by Step Solution
- Step 1: Write the proportion equation
665,771.84 : 998,909.33 = 399,717.80 : x - Step 2: Convert to fraction form
665,771.84/998,909.33 = 399,717.80/x - Step 3: Cross multiply
665,771.84x = 998,909.33 × 399,717.80 - Step 4: Simplify right side
665,771.84x = 399,281,839,787.07 - Step 5: Solve for x
x = 399,281,839,787.07/665,771.84 - Step 6: Final answer
x = 599,727.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.