Finding the Fourth Proportional to 778,092.74, 1,073,776.18 and 438,560.99
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Solution
The fourth proportional to 778,092.74, 1,073,776.18 and 438,560.99 is: 605,218.79
Step by Step Solution
- Step 1: Write the proportion equation
778,092.74 : 1,073,776.18 = 438,560.99 : x - Step 2: Convert to fraction form
778,092.74/1,073,776.18 = 438,560.99/x - Step 3: Cross multiply
778,092.74x = 1,073,776.18 × 438,560.99 - Step 4: Simplify right side
778,092.74x = 470,916,344,539.22 - Step 5: Solve for x
x = 470,916,344,539.22/778,092.74 - Step 6: Final answer
x = 605,218.79
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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.