Finding the Fourth Proportional to 816,479.07, 1,126,779.54 and 453,908.94
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Solution
The fourth proportional to 816,479.07, 1,126,779.54 and 453,908.94 is: 626,415.70
Step by Step Solution
- Step 1: Write the proportion equation
816,479.07 : 1,126,779.54 = 453,908.94 : x - Step 2: Convert to fraction form
816,479.07/1,126,779.54 = 453,908.94/x - Step 3: Cross multiply
816,479.07x = 1,126,779.54 × 453,908.94 - Step 4: Simplify right side
816,479.07x = 511,455,306,615.09 - Step 5: Solve for x
x = 511,455,306,615.09/816,479.07 - Step 6: Final answer
x = 626,415.70
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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.