Finding the Fourth Proportional to 842,790.99, 1,162,775.93 and 515,763.08
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Solution
The fourth proportional to 842,790.99, 1,162,775.93 and 515,763.08 is: 711,584.37
Step by Step Solution
- Step 1: Write the proportion equation
842,790.99 : 1,162,775.93 = 515,763.08 : x - Step 2: Convert to fraction form
842,790.99/1,162,775.93 = 515,763.08/x - Step 3: Cross multiply
842,790.99x = 1,162,775.93 × 515,763.08 - Step 4: Simplify right side
842,790.99x = 599,716,890,974.38 - Step 5: Solve for x
x = 599,716,890,974.38/842,790.99 - Step 6: Final answer
x = 711,584.37
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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.