Finding the Fourth Proportional to 385,772.97, 578,448.05 and 119,459.55
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Solution
The fourth proportional to 385,772.97, 578,448.05 and 119,459.55 is: 179,123.86
Step by Step Solution
- Step 1: Write the proportion equation
385,772.97 : 578,448.05 = 119,459.55 : x - Step 2: Convert to fraction form
385,772.97/578,448.05 = 119,459.55/x - Step 3: Cross multiply
385,772.97x = 578,448.05 × 119,459.55 - Step 4: Simplify right side
385,772.97x = 69,101,143,154.08 - Step 5: Solve for x
x = 69,101,143,154.08/385,772.97 - Step 6: Final answer
x = 179,123.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.