Finding the Fourth Proportional to 521,480.94, 719,643.99 and 283,016.94
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Solution
The fourth proportional to 521,480.94, 719,643.99 and 283,016.94 is: 390,563.54
Step by Step Solution
- Step 1: Write the proportion equation
521,480.94 : 719,643.99 = 283,016.94 : x - Step 2: Convert to fraction form
521,480.94/719,643.99 = 283,016.94/x - Step 3: Cross multiply
521,480.94x = 719,643.99 × 283,016.94 - Step 4: Simplify right side
521,480.94x = 203,671,439,939.19 - Step 5: Solve for x
x = 203,671,439,939.19/521,480.94 - Step 6: Final answer
x = 390,563.54
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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.