Finding the Fourth Proportional to 684,072.99, 1,026,330.80 and 329,040.63
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Solution
The fourth proportional to 684,072.99, 1,026,330.80 and 329,040.63 is: 493,667.40
Step by Step Solution
- Step 1: Write the proportion equation
684,072.99 : 1,026,330.80 = 329,040.63 : x - Step 2: Convert to fraction form
684,072.99/1,026,330.80 = 329,040.63/x - Step 3: Cross multiply
684,072.99x = 1,026,330.80 × 329,040.63 - Step 4: Simplify right side
684,072.99x = 337,704,531,375.20 - Step 5: Solve for x
x = 337,704,531,375.20/684,072.99 - Step 6: Final answer
x = 493,667.40
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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.