Finding the Fourth Proportional to 769,993.49, 1,062,597.69 and 430,461.74
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Solution
The fourth proportional to 769,993.49, 1,062,597.69 and 430,461.74 is: 594,040.93
Step by Step Solution
- Step 1: Write the proportion equation
769,993.49 : 1,062,597.69 = 430,461.74 : x - Step 2: Convert to fraction form
769,993.49/1,062,597.69 = 430,461.74/x - Step 3: Cross multiply
769,993.49x = 1,062,597.69 × 430,461.74 - Step 4: Simplify right side
769,993.49x = 457,407,653,213.88 - Step 5: Solve for x
x = 457,407,653,213.88/769,993.49 - Step 6: Final answer
x = 594,040.93
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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.