Finding the Fourth Proportional to 528,897.99, 729,698.99 and 338,021.49
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Solution
The fourth proportional to 528,897.99, 729,698.99 and 338,021.49 is: 466,354.46
Step by Step Solution
- Step 1: Write the proportion equation
528,897.99 : 729,698.99 = 338,021.49 : x - Step 2: Convert to fraction form
528,897.99/729,698.99 = 338,021.49/x - Step 3: Cross multiply
528,897.99x = 729,698.99 × 338,021.49 - Step 4: Simplify right side
528,897.99x = 246,653,938,161.19 - Step 5: Solve for x
x = 246,653,938,161.19/528,897.99 - Step 6: Final answer
x = 466,354.46
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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.