Finding the Fourth Proportional to 485,709.31, 670,281.78 and 270,862.99
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Solution
The fourth proportional to 485,709.31, 670,281.78 and 270,862.99 is: 373,792.56
Step by Step Solution
- Step 1: Write the proportion equation
485,709.31 : 670,281.78 = 270,862.99 : x - Step 2: Convert to fraction form
485,709.31/670,281.78 = 270,862.99/x - Step 3: Cross multiply
485,709.31x = 670,281.78 × 270,862.99 - Step 4: Simplify right side
485,709.31x = 181,554,526,413.35 - Step 5: Solve for x
x = 181,554,526,413.35/485,709.31 - Step 6: Final answer
x = 373,792.56
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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.