Finding the Fourth Proportional to 528,897.62, 729,698.47 and 338,021.12
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Solution
The fourth proportional to 528,897.62, 729,698.47 and 338,021.12 is: 466,353.95
Step by Step Solution
- Step 1: Write the proportion equation
528,897.62 : 729,698.47 = 338,021.12 : x - Step 2: Convert to fraction form
528,897.62/729,698.47 = 338,021.12/x - Step 3: Cross multiply
528,897.62x = 729,698.47 × 338,021.12 - Step 4: Simplify right side
528,897.62x = 246,653,489,598.14 - Step 5: Solve for x
x = 246,653,489,598.14/528,897.62 - Step 6: Final answer
x = 466,353.95
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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.