Finding the Fourth Proportional to 893,057.16, 1,232,413.98 and 485,155.80
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Solution
The fourth proportional to 893,057.16, 1,232,413.98 and 485,155.80 is: 669,512.34
Step by Step Solution
- Step 1: Write the proportion equation
893,057.16 : 1,232,413.98 = 485,155.80 : x - Step 2: Convert to fraction form
893,057.16/1,232,413.98 = 485,155.80/x - Step 3: Cross multiply
893,057.16x = 1,232,413.98 × 485,155.80 - Step 4: Simplify right side
893,057.16x = 597,912,790,398.08 - Step 5: Solve for x
x = 597,912,790,398.08/893,057.16 - Step 6: Final answer
x = 669,512.34
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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.