Finding the Fourth Proportional to 519,112.68, 778,669.74 and 145,135.32
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Solution
The fourth proportional to 519,112.68, 778,669.74 and 145,135.32 is: 217,703.18
Step by Step Solution
- Step 1: Write the proportion equation
519,112.68 : 778,669.74 = 145,135.32 : x - Step 2: Convert to fraction form
519,112.68/778,669.74 = 145,135.32/x - Step 3: Cross multiply
519,112.68x = 778,669.74 × 145,135.32 - Step 4: Simplify right side
519,112.68x = 113,012,481,889.22 - Step 5: Solve for x
x = 113,012,481,889.22/519,112.68 - Step 6: Final answer
x = 217,703.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.