Finding the Fourth Proportional to 430,090.70, 644,917.35 and 252,652.10
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Solution
The fourth proportional to 430,090.70, 644,917.35 and 252,652.10 is: 378,849.68
Step by Step Solution
- Step 1: Write the proportion equation
430,090.70 : 644,917.35 = 252,652.10 : x - Step 2: Convert to fraction form
430,090.70/644,917.35 = 252,652.10/x - Step 3: Cross multiply
430,090.70x = 644,917.35 × 252,652.10 - Step 4: Simplify right side
430,090.70x = 162,939,722,803.94 - Step 5: Solve for x
x = 162,939,722,803.94/430,090.70 - Step 6: Final answer
x = 378,849.68
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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.