Finding the Fourth Proportional to 753,039.68, 1,038,938.82 and 430,521.44
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Solution
The fourth proportional to 753,039.68, 1,038,938.82 and 430,521.44 is: 593,973.26
Step by Step Solution
- Step 1: Write the proportion equation
753,039.68 : 1,038,938.82 = 430,521.44 : x - Step 2: Convert to fraction form
753,039.68/1,038,938.82 = 430,521.44/x - Step 3: Cross multiply
753,039.68x = 1,038,938.82 × 430,521.44 - Step 4: Simplify right side
753,039.68x = 447,285,436,858.30 - Step 5: Solve for x
x = 447,285,436,858.30/753,039.68 - Step 6: Final answer
x = 593,973.26
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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.