Finding the Fourth Proportional to 624,017.79, 861,124.37 and 394,700.31
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Solution
The fourth proportional to 624,017.79, 861,124.37 and 394,700.31 is: 544,673.66
Step by Step Solution
- Step 1: Write the proportion equation
624,017.79 : 861,124.37 = 394,700.31 : x - Step 2: Convert to fraction form
624,017.79/861,124.37 = 394,700.31/x - Step 3: Cross multiply
624,017.79x = 861,124.37 × 394,700.31 - Step 4: Simplify right side
624,017.79x = 339,886,053,814.05 - Step 5: Solve for x
x = 339,886,053,814.05/624,017.79 - Step 6: Final answer
x = 544,673.66
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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.