Finding the Fourth Proportional to 610,699.68, 842,735.92 and 338,778.40
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Solution
The fourth proportional to 610,699.68, 842,735.92 and 338,778.40 is: 467,497.75
Step by Step Solution
- Step 1: Write the proportion equation
610,699.68 : 842,735.92 = 338,778.40 : x - Step 2: Convert to fraction form
610,699.68/842,735.92 = 338,778.40/x - Step 3: Cross multiply
610,699.68x = 842,735.92 × 338,778.40 - Step 4: Simplify right side
610,699.68x = 285,500,726,600.13 - Step 5: Solve for x
x = 285,500,726,600.13/610,699.68 - Step 6: Final answer
x = 467,497.75
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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.