Finding the Fourth Proportional to 936,694.76, 1,292,829.54 and 634,985.96
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Solution
The fourth proportional to 936,694.76, 1,292,829.54 and 634,985.96 is: 876,409.95
Step by Step Solution
- Step 1: Write the proportion equation
936,694.76 : 1,292,829.54 = 634,985.96 : x - Step 2: Convert to fraction form
936,694.76/1,292,829.54 = 634,985.96/x - Step 3: Cross multiply
936,694.76x = 1,292,829.54 × 634,985.96 - Step 4: Simplify right side
936,694.76x = 820,928,606,573.26 - Step 5: Solve for x
x = 820,928,606,573.26/936,694.76 - Step 6: Final answer
x = 876,409.95
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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.