Finding the Fourth Proportional to 485,660.09, 728,485.58 and 272,427.59
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Solution
The fourth proportional to 485,660.09, 728,485.58 and 272,427.59 is: 408,638.82
Step by Step Solution
- Step 1: Write the proportion equation
485,660.09 : 728,485.58 = 272,427.59 : x - Step 2: Convert to fraction form
485,660.09/728,485.58 = 272,427.59/x - Step 3: Cross multiply
485,660.09x = 728,485.58 × 272,427.59 - Step 4: Simplify right side
485,660.09x = 198,459,565,904.59 - Step 5: Solve for x
x = 198,459,565,904.59/485,660.09 - Step 6: Final answer
x = 408,638.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.