Finding the Fourth Proportional to 769,809.88, 1,062,318.81 and 425,637.07
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Solution
The fourth proportional to 769,809.88, 1,062,318.81 and 425,637.07 is: 587,368.75
Step by Step Solution
- Step 1: Write the proportion equation
769,809.88 : 1,062,318.81 = 425,637.07 : x - Step 2: Convert to fraction form
769,809.88/1,062,318.81 = 425,637.07/x - Step 3: Cross multiply
769,809.88x = 1,062,318.81 × 425,637.07 - Step 4: Simplify right side
769,809.88x = 452,162,265,694.29 - Step 5: Solve for x
x = 452,162,265,694.29/769,809.88 - Step 6: Final answer
x = 587,368.75
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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.