Finding the Fourth Proportional to 756,376.20, 1,134,564.30 and 283,000.05
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Solution
The fourth proportional to 756,376.20, 1,134,564.30 and 283,000.05 is: 424,500.08
Step by Step Solution
- Step 1: Write the proportion equation
756,376.20 : 1,134,564.30 = 283,000.05 : x - Step 2: Convert to fraction form
756,376.20/1,134,564.30 = 283,000.05/x - Step 3: Cross multiply
756,376.20x = 1,134,564.30 × 283,000.05 - Step 4: Simplify right side
756,376.20x = 321,081,753,628.22 - Step 5: Solve for x
x = 321,081,753,628.22/756,376.20 - Step 6: Final answer
x = 424,500.08
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1.5x scale
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.