Finding the Fourth Proportional to 939,051.82, 1,295,461.11 and 556,939.18
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Solution
The fourth proportional to 939,051.82, 1,295,461.11 and 556,939.18 is: 768,320.80
Step by Step Solution
- Step 1: Write the proportion equation
939,051.82 : 1,295,461.11 = 556,939.18 : x - Step 2: Convert to fraction form
939,051.82/1,295,461.11 = 556,939.18/x - Step 3: Cross multiply
939,051.82x = 1,295,461.11 × 556,939.18 - Step 4: Simplify right side
939,051.82x = 721,493,048,325.29 - Step 5: Solve for x
x = 721,493,048,325.29/939,051.82 - Step 6: Final answer
x = 768,320.80
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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.