Finding the Fourth Proportional to 521,444.75, 719,593.76 and 282,980.75
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Solution
The fourth proportional to 521,444.75, 719,593.76 and 282,980.75 is: 390,513.44
Step by Step Solution
- Step 1: Write the proportion equation
521,444.75 : 719,593.76 = 282,980.75 : x - Step 2: Convert to fraction form
521,444.75/719,593.76 = 282,980.75/x - Step 3: Cross multiply
521,444.75x = 719,593.76 × 282,980.75 - Step 4: Simplify right side
521,444.75x = 203,631,180,485.22 - Step 5: Solve for x
x = 203,631,180,485.22/521,444.75 - Step 6: Final answer
x = 390,513.44
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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.