Finding the Fourth Proportional to 411,537.21, 620,390.36 and 384,104.02
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Solution
The fourth proportional to 411,537.21, 620,390.36 and 384,104.02 is: 579,034.97
Step by Step Solution
- Step 1: Write the proportion equation
411,537.21 : 620,390.36 = 384,104.02 : x - Step 2: Convert to fraction form
411,537.21/620,390.36 = 384,104.02/x - Step 3: Cross multiply
411,537.21x = 620,390.36 × 384,104.02 - Step 4: Simplify right side
411,537.21x = 238,294,435,159.78 - Step 5: Solve for x
x = 238,294,435,159.78/411,537.21 - Step 6: Final answer
x = 579,034.97
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.