Finding the Fourth Proportional to 612,479.68, 918,906.02 and 313,170.50
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Solution
The fourth proportional to 612,479.68, 918,906.02 and 313,170.50 is: 469,851.12
Step by Step Solution
- Step 1: Write the proportion equation
612,479.68 : 918,906.02 = 313,170.50 : x - Step 2: Convert to fraction form
612,479.68/918,906.02 = 313,170.50/x - Step 3: Cross multiply
612,479.68x = 918,906.02 × 313,170.50 - Step 4: Simplify right side
612,479.68x = 287,774,259,642.21 - Step 5: Solve for x
x = 287,774,259,642.21/612,479.68 - Step 6: Final answer
x = 469,851.12
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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.