Finding the Fourth Proportional to 677,459.49, 1,015,867.47 and 393,237.75
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Solution
The fourth proportional to 677,459.49, 1,015,867.47 and 393,237.75 is: 589,669.85
Step by Step Solution
- Step 1: Write the proportion equation
677,459.49 : 1,015,867.47 = 393,237.75 : x - Step 2: Convert to fraction form
677,459.49/1,015,867.47 = 393,237.75/x - Step 3: Cross multiply
677,459.49x = 1,015,867.47 × 393,237.75 - Step 4: Simplify right side
677,459.49x = 399,477,438,200.99 - Step 5: Solve for x
x = 399,477,438,200.99/677,459.49 - Step 6: Final answer
x = 589,669.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.