Finding the Fourth Proportional to 621,897.48, 858,235.10 and 349,975.08
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Solution
The fourth proportional to 621,897.48, 858,235.10 and 349,975.08 is: 482,974.94
Step by Step Solution
- Step 1: Write the proportion equation
621,897.48 : 858,235.10 = 349,975.08 : x - Step 2: Convert to fraction form
621,897.48/858,235.10 = 349,975.08/x - Step 3: Cross multiply
621,897.48x = 858,235.10 × 349,975.08 - Step 4: Simplify right side
621,897.48x = 300,360,896,031.43 - Step 5: Solve for x
x = 300,360,896,031.43/621,897.48 - Step 6: Final answer
x = 482,974.94
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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.