Finding the Fourth Proportional to 679,567.20, 1,019,350.80 and 206,251.80
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Solution
The fourth proportional to 679,567.20, 1,019,350.80 and 206,251.80 is: 309,377.70
Step by Step Solution
- Step 1: Write the proportion equation
679,567.20 : 1,019,350.80 = 206,251.80 : x - Step 2: Convert to fraction form
679,567.20/1,019,350.80 = 206,251.80/x - Step 3: Cross multiply
679,567.20x = 1,019,350.80 × 206,251.80 - Step 4: Simplify right side
679,567.20x = 210,242,937,331.44 - Step 5: Solve for x
x = 210,242,937,331.44/679,567.20 - Step 6: Final answer
x = 309,377.70
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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.