Finding the Fourth Proportional to 610,828.68, 842,915.12 and 338,893.68
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Solution
The fourth proportional to 610,828.68, 842,915.12 and 338,893.68 is: 467,657.49
Step by Step Solution
- Step 1: Write the proportion equation
610,828.68 : 842,915.12 = 338,893.68 : x - Step 2: Convert to fraction form
610,828.68/842,915.12 = 338,893.68/x - Step 3: Cross multiply
610,828.68x = 842,915.12 × 338,893.68 - Step 4: Simplify right side
610,828.68x = 285,658,606,944.44 - Step 5: Solve for x
x = 285,658,606,944.44/610,828.68 - Step 6: Final answer
x = 467,657.49
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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.