Finding the Fourth Proportional to 420,852.92, 580,806.69 and 239,564.93
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Solution
The fourth proportional to 420,852.92, 580,806.69 and 239,564.93 is: 330,616.49
Step by Step Solution
- Step 1: Write the proportion equation
420,852.92 : 580,806.69 = 239,564.93 : x - Step 2: Convert to fraction form
420,852.92/580,806.69 = 239,564.93/x - Step 3: Cross multiply
420,852.92x = 580,806.69 × 239,564.93 - Step 4: Simplify right side
420,852.92x = 139,140,914,033.38 - Step 5: Solve for x
x = 139,140,914,033.38/420,852.92 - Step 6: Final answer
x = 330,616.49
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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.