Finding the Fourth Proportional to 352,943.80, 529,415.70 and 329,615.80
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Solution
The fourth proportional to 352,943.80, 529,415.70 and 329,615.80 is: 494,423.70
Step by Step Solution
- Step 1: Write the proportion equation
352,943.80 : 529,415.70 = 329,615.80 : x - Step 2: Convert to fraction form
352,943.80/529,415.70 = 329,615.80/x - Step 3: Cross multiply
352,943.80x = 529,415.70 × 329,615.80 - Step 4: Simplify right side
352,943.80x = 174,503,779,488.06 - Step 5: Solve for x
x = 174,503,779,488.06/352,943.80 - Step 6: Final answer
x = 494,423.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.