Finding the Fourth Proportional to 918,973.40, 1,268,215.64 and 511,092.44
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Solution
The fourth proportional to 918,973.40, 1,268,215.64 and 511,092.44 is: 705,325.55
Step by Step Solution
- Step 1: Write the proportion equation
918,973.40 : 1,268,215.64 = 511,092.44 : x - Step 2: Convert to fraction form
918,973.40/1,268,215.64 = 511,092.44/x - Step 3: Cross multiply
918,973.40x = 1,268,215.64 × 511,092.44 - Step 4: Simplify right side
918,973.40x = 648,175,416,997.22 - Step 5: Solve for x
x = 648,175,416,997.22/918,973.40 - Step 6: Final answer
x = 705,325.55
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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.