Finding the Fourth Proportional to 644,537.40, 889,445.64 and 358,058.19
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Solution
The fourth proportional to 644,537.40, 889,445.64 and 358,058.19 is: 494,111.43
Step by Step Solution
- Step 1: Write the proportion equation
644,537.40 : 889,445.64 = 358,058.19 : x - Step 2: Convert to fraction form
644,537.40/889,445.64 = 358,058.19/x - Step 3: Cross multiply
644,537.40x = 889,445.64 × 358,058.19 - Step 4: Simplify right side
644,537.40x = 318,473,295,961.79 - Step 5: Solve for x
x = 318,473,295,961.79/644,537.40 - Step 6: Final answer
x = 494,111.43
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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.