Finding the Fourth Proportional to 878,474.04, 1,212,424.20 and 556,214.04
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Solution
The fourth proportional to 878,474.04, 1,212,424.20 and 556,214.04 is: 767,657.70
Step by Step Solution
- Step 1: Write the proportion equation
878,474.04 : 1,212,424.20 = 556,214.04 : x - Step 2: Convert to fraction form
878,474.04/1,212,424.20 = 556,214.04/x - Step 3: Cross multiply
878,474.04x = 1,212,424.20 × 556,214.04 - Step 4: Simplify right side
878,474.04x = 674,367,362,475.77 - Step 5: Solve for x
x = 674,367,362,475.77/878,474.04 - Step 6: Final answer
x = 767,657.70
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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.