Finding the Fourth Proportional to 778,134.13, 1,073,907.66 and 456,114.79
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Solution
The fourth proportional to 778,134.13, 1,073,907.66 and 456,114.79 is: 629,486.80
Step by Step Solution
- Step 1: Write the proportion equation
778,134.13 : 1,073,907.66 = 456,114.79 : x - Step 2: Convert to fraction form
778,134.13/1,073,907.66 = 456,114.79/x - Step 3: Cross multiply
778,134.13x = 1,073,907.66 × 456,114.79 - Step 4: Simplify right side
778,134.13x = 489,825,166,820.29 - Step 5: Solve for x
x = 489,825,166,820.29/778,134.13 - Step 6: Final answer
x = 629,486.80
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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.