Finding the Fourth Proportional to 711,463.42, 982,069.68 and 439,739.74
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Solution
The fourth proportional to 711,463.42, 982,069.68 and 439,739.74 is: 606,995.46
Step by Step Solution
- Step 1: Write the proportion equation
711,463.42 : 982,069.68 = 439,739.74 : x - Step 2: Convert to fraction form
711,463.42/982,069.68 = 439,739.74/x - Step 3: Cross multiply
711,463.42x = 982,069.68 × 439,739.74 - Step 4: Simplify right side
711,463.42x = 431,855,065,745.08 - Step 5: Solve for x
x = 431,855,065,745.08/711,463.42 - Step 6: Final answer
x = 606,995.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.