Finding the Fourth Proportional to 523,929.80, 785,894.70 and 129,945.80
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Solution
The fourth proportional to 523,929.80, 785,894.70 and 129,945.80 is: 194,918.70
Step by Step Solution
- Step 1: Write the proportion equation
523,929.80 : 785,894.70 = 129,945.80 : x - Step 2: Convert to fraction form
523,929.80/785,894.70 = 129,945.80/x - Step 3: Cross multiply
523,929.80x = 785,894.70 × 129,945.80 - Step 4: Simplify right side
523,929.80x = 102,123,715,507.26 - Step 5: Solve for x
x = 102,123,715,507.26/523,929.80 - Step 6: Final answer
x = 194,918.70
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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.