Finding the Fourth Proportional to 870,682.05, 1,201,571.30 and 483,503.96
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Solution
The fourth proportional to 870,682.05, 1,201,571.30 and 483,503.96 is: 667,252.17
Step by Step Solution
- Step 1: Write the proportion equation
870,682.05 : 1,201,571.30 = 483,503.96 : x - Step 2: Convert to fraction form
870,682.05/1,201,571.30 = 483,503.96/x - Step 3: Cross multiply
870,682.05x = 1,201,571.30 × 483,503.96 - Step 4: Simplify right side
870,682.05x = 580,964,485,985.04 - Step 5: Solve for x
x = 580,964,485,985.04/870,682.05 - Step 6: Final answer
x = 667,252.17
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1.5x scale
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.