Finding the Fourth Proportional to 511,457.36, 766,203.91 and 286,134.93
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Solution
The fourth proportional to 511,457.36, 766,203.91 and 286,134.93 is: 428,652.94
Step by Step Solution
- Step 1: Write the proportion equation
511,457.36 : 766,203.91 = 286,134.93 : x - Step 2: Convert to fraction form
511,457.36/766,203.91 = 286,134.93/x - Step 3: Cross multiply
511,457.36x = 766,203.91 × 286,134.93 - Step 4: Simplify right side
511,457.36x = 219,237,701,438.24 - Step 5: Solve for x
x = 219,237,701,438.24/511,457.36 - Step 6: Final answer
x = 428,652.94
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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.