Finding the Fourth Proportional to 691,781.99, 954,656.69 and 385,858.13
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Solution
The fourth proportional to 691,781.99, 954,656.69 and 385,858.13 is: 532,482.84
Step by Step Solution
- Step 1: Write the proportion equation
691,781.99 : 954,656.69 = 385,858.13 : x - Step 2: Convert to fraction form
691,781.99/954,656.69 = 385,858.13/x - Step 3: Cross multiply
691,781.99x = 954,656.69 × 385,858.13 - Step 4: Simplify right side
691,781.99x = 368,362,038,492.82 - Step 5: Solve for x
x = 368,362,038,492.82/691,781.99 - Step 6: Final answer
x = 532,482.84
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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.