Finding the Fourth Proportional to 657,668.20, 986,502.30 and 445,091.80
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Solution
The fourth proportional to 657,668.20, 986,502.30 and 445,091.80 is: 667,637.70
Step by Step Solution
- Step 1: Write the proportion equation
657,668.20 : 986,502.30 = 445,091.80 : x - Step 2: Convert to fraction form
657,668.20/986,502.30 = 445,091.80/x - Step 3: Cross multiply
657,668.20x = 986,502.30 × 445,091.80 - Step 4: Simplify right side
657,668.20x = 439,084,084,411.14 - Step 5: Solve for x
x = 439,084,084,411.14/657,668.20 - Step 6: Final answer
x = 667,637.70
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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.