Finding the Fourth Proportional to 847,908.28, 1,170,178.68 and 485,446.24
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Solution
The fourth proportional to 847,908.28, 1,170,178.68 and 485,446.24 is: 669,953.17
Step by Step Solution
- Step 1: Write the proportion equation
847,908.28 : 1,170,178.68 = 485,446.24 : x - Step 2: Convert to fraction form
847,908.28/1,170,178.68 = 485,446.24/x - Step 3: Cross multiply
847,908.28x = 1,170,178.68 × 485,446.24 - Step 4: Simplify right side
847,908.28x = 568,058,840,334.16 - Step 5: Solve for x
x = 568,058,840,334.16/847,908.28 - Step 6: Final answer
x = 669,953.17
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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.