Finding the Fourth Proportional to 879,781.12, 1,319,503.20 and 374,620.48
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Solution
The fourth proportional to 879,781.12, 1,319,503.20 and 374,620.48 is: 561,858.98
Step by Step Solution
- Step 1: Write the proportion equation
879,781.12 : 1,319,503.20 = 374,620.48 : x - Step 2: Convert to fraction form
879,781.12/1,319,503.20 = 374,620.48/x - Step 3: Cross multiply
879,781.12x = 1,319,503.20 × 374,620.48 - Step 4: Simplify right side
879,781.12x = 494,312,922,145.54 - Step 5: Solve for x
x = 494,312,922,145.54/879,781.12 - Step 6: Final answer
x = 561,858.98
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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.