Finding the Fourth Proportional to 389,625.80, 584,438.70 and 366,297.80
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Solution
The fourth proportional to 389,625.80, 584,438.70 and 366,297.80 is: 549,446.70
Step by Step Solution
- Step 1: Write the proportion equation
389,625.80 : 584,438.70 = 366,297.80 : x - Step 2: Convert to fraction form
389,625.80/584,438.70 = 366,297.80/x - Step 3: Cross multiply
389,625.80x = 584,438.70 × 366,297.80 - Step 4: Simplify right side
389,625.80x = 214,078,610,044.86 - Step 5: Solve for x
x = 214,078,610,044.86/389,625.80 - Step 6: Final answer
x = 549,446.70
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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.