Finding the Fourth Proportional to 1,357,763.26, 1,874,090.42 and 777,311.59
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Solution
The fourth proportional to 1,357,763.26, 1,874,090.42 and 777,311.59 is: 1,072,905.89
Step by Step Solution
- Step 1: Write the proportion equation
1,357,763.26 : 1,874,090.42 = 777,311.59 : x - Step 2: Convert to fraction form
1,357,763.26/1,874,090.42 = 777,311.59/x - Step 3: Cross multiply
1,357,763.26x = 1,874,090.42 × 777,311.59 - Step 4: Simplify right side
1,357,763.26x = 1,456,752,202,031.02 - Step 5: Solve for x
x = 1,456,752,202,031.02/1,357,763.26 - Step 6: Final answer
x = 1,072,905.89
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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.