Finding the Fourth Proportional to 679,412.84, 1,019,092.65 and 230,133.70
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Solution
The fourth proportional to 679,412.84, 1,019,092.65 and 230,133.70 is: 345,191.54
Step by Step Solution
- Step 1: Write the proportion equation
679,412.84 : 1,019,092.65 = 230,133.70 : x - Step 2: Convert to fraction form
679,412.84/1,019,092.65 = 230,133.70/x - Step 3: Cross multiply
679,412.84x = 1,019,092.65 × 230,133.70 - Step 4: Simplify right side
679,412.84x = 234,527,562,187.31 - Step 5: Solve for x
x = 234,527,562,187.31/679,412.84 - Step 6: Final answer
x = 345,191.54
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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.