Finding the Fourth Proportional to 1,143,763.74, 1,715,424.21 and 385,525.44
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Solution
The fourth proportional to 1,143,763.74, 1,715,424.21 and 385,525.44 is: 578,213.53
Step by Step Solution
- Step 1: Write the proportion equation
1,143,763.74 : 1,715,424.21 = 385,525.44 : x - Step 2: Convert to fraction form
1,143,763.74/1,715,424.21 = 385,525.44/x - Step 3: Cross multiply
1,143,763.74x = 1,715,424.21 × 385,525.44 - Step 4: Simplify right side
1,143,763.74x = 661,339,673,346.90 - Step 5: Solve for x
x = 661,339,673,346.90/1,143,763.74 - Step 6: Final answer
x = 578,213.53
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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.