Finding the Fourth Proportional to 678,750.90, 936,692.40 and 372,833.68
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Solution
The fourth proportional to 678,750.90, 936,692.40 and 372,833.68 is: 514,519.35
Step by Step Solution
- Step 1: Write the proportion equation
678,750.90 : 936,692.40 = 372,833.68 : x - Step 2: Convert to fraction form
678,750.90/936,692.40 = 372,833.68/x - Step 3: Cross multiply
678,750.90x = 936,692.40 × 372,833.68 - Step 4: Simplify right side
678,750.90x = 349,230,474,520.03 - Step 5: Solve for x
x = 349,230,474,520.03/678,750.90 - Step 6: Final answer
x = 514,519.35
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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.