Finding the Fourth Proportional to 775,781.64, 1,163,671.92 and 243,343.80
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Solution
The fourth proportional to 775,781.64, 1,163,671.92 and 243,343.80 is: 365,015.53
Step by Step Solution
- Step 1: Write the proportion equation
775,781.64 : 1,163,671.92 = 243,343.80 : x - Step 2: Convert to fraction form
775,781.64/1,163,671.92 = 243,343.80/x - Step 3: Cross multiply
775,781.64x = 1,163,671.92 × 243,343.80 - Step 4: Simplify right side
775,781.64x = 283,172,346,966.10 - Step 5: Solve for x
x = 283,172,346,966.10/775,781.64 - Step 6: Final answer
x = 365,015.53
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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.