Finding the Fourth Proportional to 789,994.94, 1,090,192.62 and 445,903.08
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Solution
The fourth proportional to 789,994.94, 1,090,192.62 and 445,903.08 is: 615,346.02
Step by Step Solution
- Step 1: Write the proportion equation
789,994.94 : 1,090,192.62 = 445,903.08 : x - Step 2: Convert to fraction form
789,994.94/1,090,192.62 = 445,903.08/x - Step 3: Cross multiply
789,994.94x = 1,090,192.62 × 445,903.08 - Step 4: Simplify right side
789,994.94x = 486,120,242,126.98 - Step 5: Solve for x
x = 486,120,242,126.98/789,994.94 - Step 6: Final answer
x = 615,346.02
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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.