Finding the Fourth Proportional to 778,203.81, 1,073,911.64 and 438,672.06
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Solution
The fourth proportional to 778,203.81, 1,073,911.64 and 438,672.06 is: 605,362.02
Step by Step Solution
- Step 1: Write the proportion equation
778,203.81 : 1,073,911.64 = 438,672.06 : x - Step 2: Convert to fraction form
778,203.81/1,073,911.64 = 438,672.06/x - Step 3: Cross multiply
778,203.81x = 1,073,911.64 × 438,672.06 - Step 4: Simplify right side
778,203.81x = 471,095,029,183.42 - Step 5: Solve for x
x = 471,095,029,183.42/778,203.81 - Step 6: Final answer
x = 605,362.02
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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.