Finding the Fourth Proportional to 601,828.80, 830,146.08 and 387,247.68
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Solution
The fourth proportional to 601,828.80, 830,146.08 and 387,247.68 is: 534,158.79
Step by Step Solution
- Step 1: Write the proportion equation
601,828.80 : 830,146.08 = 387,247.68 : x - Step 2: Convert to fraction form
601,828.80/830,146.08 = 387,247.68/x - Step 3: Cross multiply
601,828.80x = 830,146.08 × 387,247.68 - Step 4: Simplify right side
601,828.80x = 321,472,143,541.09 - Step 5: Solve for x
x = 321,472,143,541.09/601,828.80 - Step 6: Final answer
x = 534,158.79
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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.