Finding the Fourth Proportional to 991,746.17, 1,368,514.11 and 556,181.38
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Solution
The fourth proportional to 991,746.17, 1,368,514.11 and 556,181.38 is: 767,476.69
Step by Step Solution
- Step 1: Write the proportion equation
991,746.17 : 1,368,514.11 = 556,181.38 : x - Step 2: Convert to fraction form
991,746.17/1,368,514.11 = 556,181.38/x - Step 3: Cross multiply
991,746.17x = 1,368,514.11 × 556,181.38 - Step 4: Simplify right side
991,746.17x = 761,142,066,249.27 - Step 5: Solve for x
x = 761,142,066,249.27/991,746.17 - Step 6: Final answer
x = 767,476.69
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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.