Finding the Fourth Proportional to 738,138.30, 1,107,207.45 and 559,679.10
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Solution
The fourth proportional to 738,138.30, 1,107,207.45 and 559,679.10 is: 839,518.65
Step by Step Solution
- Step 1: Write the proportion equation
738,138.30 : 1,107,207.45 = 559,679.10 : x - Step 2: Convert to fraction form
738,138.30/1,107,207.45 = 559,679.10/x - Step 3: Cross multiply
738,138.30x = 1,107,207.45 × 559,679.10 - Step 4: Simplify right side
738,138.30x = 619,680,869,129.30 - Step 5: Solve for x
x = 619,680,869,129.30/738,138.30 - Step 6: Final answer
x = 839,518.65
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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.