Finding the Fourth Proportional to 864,712.86, 1,193,622.17 and 520,564.79
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Solution
The fourth proportional to 864,712.86, 1,193,622.17 and 520,564.79 is: 718,571.09
Step by Step Solution
- Step 1: Write the proportion equation
864,712.86 : 1,193,622.17 = 520,564.79 : x - Step 2: Convert to fraction form
864,712.86/1,193,622.17 = 520,564.79/x - Step 3: Cross multiply
864,712.86x = 1,193,622.17 × 520,564.79 - Step 4: Simplify right side
864,712.86x = 621,357,665,694.46 - Step 5: Solve for x
x = 621,357,665,694.46/864,712.86 - Step 6: Final answer
x = 718,571.09
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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.