Finding the Fourth Proportional to 487,193.68, 671,993.68 and 317,657.44
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Solution
The fourth proportional to 487,193.68, 671,993.68 and 317,657.44 is: 438,149.76
Step by Step Solution
- Step 1: Write the proportion equation
487,193.68 : 671,993.68 = 317,657.44 : x - Step 2: Convert to fraction form
487,193.68/671,993.68 = 317,657.44/x - Step 3: Cross multiply
487,193.68x = 671,993.68 × 317,657.44 - Step 4: Simplify right side
487,193.68x = 213,463,792,084.98 - Step 5: Solve for x
x = 213,463,792,084.98/487,193.68 - Step 6: Final answer
x = 438,149.76
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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.