Finding the Fourth Proportional to 754,112.09, 1,040,681.45 and 409,948.68
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Solution
The fourth proportional to 754,112.09, 1,040,681.45 and 409,948.68 is: 565,732.86
Step by Step Solution
- Step 1: Write the proportion equation
754,112.09 : 1,040,681.45 = 409,948.68 : x - Step 2: Convert to fraction form
754,112.09/1,040,681.45 = 409,948.68/x - Step 3: Cross multiply
754,112.09x = 1,040,681.45 × 409,948.68 - Step 4: Simplify right side
754,112.09x = 426,625,986,727.99 - Step 5: Solve for x
x = 426,625,986,727.99/754,112.09 - Step 6: Final answer
x = 565,732.86
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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.