Finding the Fourth Proportional to 442,943.80, 664,415.70 and 364,211.80
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Solution
The fourth proportional to 442,943.80, 664,415.70 and 364,211.80 is: 546,317.70
Step by Step Solution
- Step 1: Write the proportion equation
442,943.80 : 664,415.70 = 364,211.80 : x - Step 2: Convert to fraction form
442,943.80/664,415.70 = 364,211.80/x - Step 3: Cross multiply
442,943.80x = 664,415.70 × 364,211.80 - Step 4: Simplify right side
442,943.80x = 241,988,038,045.26 - Step 5: Solve for x
x = 241,988,038,045.26/442,943.80 - Step 6: Final answer
x = 546,317.70
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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.