Finding the Fourth Proportional to 389,674.80, 584,512.20 and 346,129.20
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Solution
The fourth proportional to 389,674.80, 584,512.20 and 346,129.20 is: 519,193.80
Step by Step Solution
- Step 1: Write the proportion equation
389,674.80 : 584,512.20 = 346,129.20 : x - Step 2: Convert to fraction form
389,674.80/584,512.20 = 346,129.20/x - Step 3: Cross multiply
389,674.80x = 584,512.20 × 346,129.20 - Step 4: Simplify right side
389,674.80x = 202,316,740,176.24 - Step 5: Solve for x
x = 202,316,740,176.24/389,674.80 - Step 6: Final answer
x = 519,193.80
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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.