Finding the Fourth Proportional to 620,503.84, 856,374.48 and 378,734.68
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Solution
The fourth proportional to 620,503.84, 856,374.48 and 378,734.68 is: 522,702.19
Step by Step Solution
- Step 1: Write the proportion equation
620,503.84 : 856,374.48 = 378,734.68 : x - Step 2: Convert to fraction form
620,503.84/856,374.48 = 378,734.68/x - Step 3: Cross multiply
620,503.84x = 856,374.48 × 378,734.68 - Step 4: Simplify right side
620,503.84x = 324,338,714,642.97 - Step 5: Solve for x
x = 324,338,714,642.97/620,503.84 - Step 6: Final answer
x = 522,702.19
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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.