Finding the Fourth Proportional to 870,710.56, 1,201,514.64 and 488,663.68
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Solution
The fourth proportional to 870,710.56, 1,201,514.64 and 488,663.68 is: 674,318.88
Step by Step Solution
- Step 1: Write the proportion equation
870,710.56 : 1,201,514.64 = 488,663.68 : x - Step 2: Convert to fraction form
870,710.56/1,201,514.64 = 488,663.68/x - Step 3: Cross multiply
870,710.56x = 1,201,514.64 × 488,663.68 - Step 4: Simplify right side
870,710.56x = 587,136,565,556.28 - Step 5: Solve for x
x = 587,136,565,556.28/870,710.56 - Step 6: Final answer
x = 674,318.88
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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.