Finding the Fourth Proportional to 621,561.93, 857,512.55 and 349,567.44
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Solution
The fourth proportional to 621,561.93, 857,512.55 and 349,567.44 is: 482,266.45
Step by Step Solution
- Step 1: Write the proportion equation
621,561.93 : 857,512.55 = 349,567.44 : x - Step 2: Convert to fraction form
621,561.93/857,512.55 = 349,567.44/x - Step 3: Cross multiply
621,561.93x = 857,512.55 × 349,567.44 - Step 4: Simplify right side
621,561.93x = 299,758,465,123.54 - Step 5: Solve for x
x = 299,758,465,123.54/621,561.93 - Step 6: Final answer
x = 482,266.45
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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.