Finding the Fourth Proportional to 1,129,368.52, 1,558,553.70 and 620,072.92
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Solution
The fourth proportional to 1,129,368.52, 1,558,553.70 and 620,072.92 is: 855,714.43
Step by Step Solution
- Step 1: Write the proportion equation
1,129,368.52 : 1,558,553.70 = 620,072.92 : x - Step 2: Convert to fraction form
1,129,368.52/1,558,553.70 = 620,072.92/x - Step 3: Cross multiply
1,129,368.52x = 1,558,553.70 × 620,072.92 - Step 4: Simplify right side
1,129,368.52x = 966,416,943,735.80 - Step 5: Solve for x
x = 966,416,943,735.80/1,129,368.52 - Step 6: Final answer
x = 855,714.43
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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.