Finding the Fourth Proportional to 631,899.92, 872,043.08 and 345,413.84
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Solution
The fourth proportional to 631,899.92, 872,043.08 and 345,413.84 is: 476,682.68
Step by Step Solution
- Step 1: Write the proportion equation
631,899.92 : 872,043.08 = 345,413.84 : x - Step 2: Convert to fraction form
631,899.92/872,043.08 = 345,413.84/x - Step 3: Cross multiply
631,899.92x = 872,043.08 × 345,413.84 - Step 4: Simplify right side
631,899.92x = 301,215,748,908.23 - Step 5: Solve for x
x = 301,215,748,908.23/631,899.92 - Step 6: Final answer
x = 476,682.68
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1.5x scale
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.