Finding the Fourth Proportional to 681,143.08, 939,977.10 and 394,829.08
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Solution
The fourth proportional to 681,143.08, 939,977.10 and 394,829.08 is: 544,863.93
Step by Step Solution
- Step 1: Write the proportion equation
681,143.08 : 939,977.10 = 394,829.08 : x - Step 2: Convert to fraction form
681,143.08/939,977.10 = 394,829.08/x - Step 3: Cross multiply
681,143.08x = 939,977.10 × 394,829.08 - Step 4: Simplify right side
681,143.08x = 371,130,293,614.07 - Step 5: Solve for x
x = 371,130,293,614.07/681,143.08 - Step 6: Final answer
x = 544,863.93
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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.