Finding the Fourth Proportional to 711,045.36, 1,066,070.05 and 261,707.99
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Solution
The fourth proportional to 711,045.36, 1,066,070.05 and 261,707.99 is: 392,378.69
Step by Step Solution
- Step 1: Write the proportion equation
711,045.36 : 1,066,070.05 = 261,707.99 : x - Step 2: Convert to fraction form
711,045.36/1,066,070.05 = 261,707.99/x - Step 3: Cross multiply
711,045.36x = 1,066,070.05 × 261,707.99 - Step 4: Simplify right side
711,045.36x = 278,999,044,000.08 - Step 5: Solve for x
x = 278,999,044,000.08/711,045.36 - Step 6: Final answer
x = 392,378.69
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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.