Finding the Fourth Proportional to 339,620.10, 509,430.15 and 310,589.70
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Solution
The fourth proportional to 339,620.10, 509,430.15 and 310,589.70 is: 465,884.55
Step by Step Solution
- Step 1: Write the proportion equation
339,620.10 : 509,430.15 = 310,589.70 : x - Step 2: Convert to fraction form
339,620.10/509,430.15 = 310,589.70/x - Step 3: Cross multiply
339,620.10x = 509,430.15 × 310,589.70 - Step 4: Simplify right side
339,620.10x = 158,223,757,459.46 - Step 5: Solve for x
x = 158,223,757,459.46/339,620.10 - Step 6: Final answer
x = 465,884.55
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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.