Finding the Fourth Proportional to 385,710.36, 578,453.84 and 115,827.62
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Solution
The fourth proportional to 385,710.36, 578,453.84 and 115,827.62 is: 173,707.89
Step by Step Solution
- Step 1: Write the proportion equation
385,710.36 : 578,453.84 = 115,827.62 : x - Step 2: Convert to fraction form
385,710.36/578,453.84 = 115,827.62/x - Step 3: Cross multiply
385,710.36x = 578,453.84 × 115,827.62 - Step 4: Simplify right side
385,710.36x = 67,000,931,567.06 - Step 5: Solve for x
x = 67,000,931,567.06/385,710.36 - Step 6: Final answer
x = 173,707.89
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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.