Finding the Fourth Proportional to 1,378,698.21, 1,902,576.24 and 766,837.80
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Solution
The fourth proportional to 1,378,698.21, 1,902,576.24 and 766,837.80 is: 1,058,220.99
Step by Step Solution
- Step 1: Write the proportion equation
1,378,698.21 : 1,902,576.24 = 766,837.80 : x - Step 2: Convert to fraction form
1,378,698.21/1,902,576.24 = 766,837.80/x - Step 3: Cross multiply
1,378,698.21x = 1,902,576.24 × 766,837.80 - Step 4: Simplify right side
1,378,698.21x = 1,458,967,378,213.87 - Step 5: Solve for x
x = 1,458,967,378,213.87/1,378,698.21 - Step 6: Final answer
x = 1,058,220.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.