Finding the Fourth Proportional to 778,206.06, 1,073,914.74 and 438,674.31
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Solution
The fourth proportional to 778,206.06, 1,073,914.74 and 438,674.31 is: 605,365.12
Step by Step Solution
- Step 1: Write the proportion equation
778,206.06 : 1,073,914.74 = 438,674.31 : x - Step 2: Convert to fraction form
778,206.06/1,073,914.74 = 438,674.31/x - Step 3: Cross multiply
778,206.06x = 1,073,914.74 × 438,674.31 - Step 4: Simplify right side
778,206.06x = 471,098,807,568.33 - Step 5: Solve for x
x = 471,098,807,568.33/778,206.06 - Step 6: Final answer
x = 605,365.12
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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.