Finding the Fourth Proportional to 738,146.79, 1,018,637.91 and 415,960.38
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Solution
The fourth proportional to 738,146.79, 1,018,637.91 and 415,960.38 is: 574,022.70
Step by Step Solution
- Step 1: Write the proportion equation
738,146.79 : 1,018,637.91 = 415,960.38 : x - Step 2: Convert to fraction form
738,146.79/1,018,637.91 = 415,960.38/x - Step 3: Cross multiply
738,146.79x = 1,018,637.91 × 415,960.38 - Step 4: Simplify right side
738,146.79x = 423,713,012,126.01 - Step 5: Solve for x
x = 423,713,012,126.01/738,146.79 - Step 6: Final answer
x = 574,022.70
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1.5x scale
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.