Finding the Fourth Proportional to 1,029,918.40, 1,544,992.80 and 319,940.80
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Solution
The fourth proportional to 1,029,918.40, 1,544,992.80 and 319,940.80 is: 479,946.99
Step by Step Solution
- Step 1: Write the proportion equation
1,029,918.40 : 1,544,992.80 = 319,940.80 : x - Step 2: Convert to fraction form
1,029,918.40/1,544,992.80 = 319,940.80/x - Step 3: Cross multiply
1,029,918.40x = 1,544,992.80 × 319,940.80 - Step 4: Simplify right side
1,029,918.40x = 494,306,232,426.24 - Step 5: Solve for x
x = 494,306,232,426.24/1,029,918.40 - Step 6: Final answer
x = 479,946.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.