Finding the Fourth Proportional to 939,809.45, 1,296,878.01 and 531,994.09
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Solution
The fourth proportional to 939,809.45, 1,296,878.01 and 531,994.09 is: 734,118.43
Step by Step Solution
- Step 1: Write the proportion equation
939,809.45 : 1,296,878.01 = 531,994.09 : x - Step 2: Convert to fraction form
939,809.45/1,296,878.01 = 531,994.09/x - Step 3: Cross multiply
939,809.45x = 1,296,878.01 × 531,994.09 - Step 4: Simplify right side
939,809.45x = 689,931,436,770.96 - Step 5: Solve for x
x = 689,931,436,770.96/939,809.45 - Step 6: Final answer
x = 734,118.43
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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.