Finding the Fourth Proportional to 806,277.68, 1,112,648.79 and 438,742.28
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Solution
The fourth proportional to 806,277.68, 1,112,648.79 and 438,742.28 is: 605,456.51
Step by Step Solution
- Step 1: Write the proportion equation
806,277.68 : 1,112,648.79 = 438,742.28 : x - Step 2: Convert to fraction form
806,277.68/1,112,648.79 = 438,742.28/x - Step 3: Cross multiply
806,277.68x = 1,112,648.79 × 438,742.28 - Step 4: Simplify right side
806,277.68x = 488,166,066,963.84 - Step 5: Solve for x
x = 488,166,066,963.84/806,277.68 - Step 6: Final answer
x = 605,456.51
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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.