Finding the Fourth Proportional to 412,756.68, 619,135.14 and 272,482.50
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Solution
The fourth proportional to 412,756.68, 619,135.14 and 272,482.50 is: 408,723.83
Step by Step Solution
- Step 1: Write the proportion equation
412,756.68 : 619,135.14 = 272,482.50 : x - Step 2: Convert to fraction form
412,756.68/619,135.14 = 272,482.50/x - Step 3: Cross multiply
412,756.68x = 619,135.14 × 272,482.50 - Step 4: Simplify right side
412,756.68x = 168,703,490,785.05 - Step 5: Solve for x
x = 168,703,490,785.05/412,756.68 - Step 6: Final answer
x = 408,723.83
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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.