Finding the Fourth Proportional to 621,347.63, 857,359.70 and 349,399.31
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Solution
The fourth proportional to 621,347.63, 857,359.70 and 349,399.31 is: 482,114.80
Step by Step Solution
- Step 1: Write the proportion equation
621,347.63 : 857,359.70 = 349,399.31 : x - Step 2: Convert to fraction form
621,347.63/857,359.70 = 349,399.31/x - Step 3: Cross multiply
621,347.63x = 857,359.70 × 349,399.31 - Step 4: Simplify right side
621,347.63x = 299,560,887,601.81 - Step 5: Solve for x
x = 299,560,887,601.81/621,347.63 - Step 6: Final answer
x = 482,114.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.