Finding the Fourth Proportional to 859,602.48, 1,185,948.36 and 491,811
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Solution
The fourth proportional to 859,602.48, 1,185,948.36 and 491,811 is: 678,525.79
Step by Step Solution
- Step 1: Write the proportion equation
859,602.48 : 1,185,948.36 = 491,811 : x - Step 2: Convert to fraction form
859,602.48/1,185,948.36 = 491,811/x - Step 3: Cross multiply
859,602.48x = 1,185,948.36 × 491,811 - Step 4: Simplify right side
859,602.48x = 583,262,448,879.96 - Step 5: Solve for x
x = 583,262,448,879.96/859,602.48 - Step 6: Final answer
x = 678,525.79
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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.