Finding the Fourth Proportional to 839,294.20, 1,259,313.38 and 439,840
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Solution
The fourth proportional to 839,294.20, 1,259,313.38 and 439,840 is: 659,954.99
Step by Step Solution
- Step 1: Write the proportion equation
839,294.20 : 1,259,313.38 = 439,840 : x - Step 2: Convert to fraction form
839,294.20/1,259,313.38 = 439,840/x - Step 3: Cross multiply
839,294.20x = 1,259,313.38 × 439,840 - Step 4: Simplify right side
839,294.20x = 553,896,397,059.20 - Step 5: Solve for x
x = 553,896,397,059.20/839,294.20 - Step 6: Final answer
x = 659,954.99
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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.