Finding the Fourth Proportional to 847,817.28, 1,169,984.52 and 485,239.68
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Solution
The fourth proportional to 847,817.28, 1,169,984.52 and 485,239.68 is: 669,628.85
Step by Step Solution
- Step 1: Write the proportion equation
847,817.28 : 1,169,984.52 = 485,239.68 : x - Step 2: Convert to fraction form
847,817.28/1,169,984.52 = 485,239.68/x - Step 3: Cross multiply
847,817.28x = 1,169,984.52 × 485,239.68 - Step 4: Simplify right side
847,817.28x = 567,722,914,089.75 - Step 5: Solve for x
x = 567,722,914,089.75/847,817.28 - Step 6: Final answer
x = 669,628.85
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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.