Finding the Fourth Proportional to 420,296.81, 580,009.61 and 269,393.81
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Solution
The fourth proportional to 420,296.81, 580,009.61 and 269,393.81 is: 371,763.46
Step by Step Solution
- Step 1: Write the proportion equation
420,296.81 : 580,009.61 = 269,393.81 : x - Step 2: Convert to fraction form
420,296.81/580,009.61 = 269,393.81/x - Step 3: Cross multiply
420,296.81x = 580,009.61 × 269,393.81 - Step 4: Simplify right side
420,296.81x = 156,250,998,777.57 - Step 5: Solve for x
x = 156,250,998,777.57/420,296.81 - Step 6: Final answer
x = 371,763.46
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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.