Finding the Fourth Proportional to 571,140.74, 788,174.34 and 313,027.94
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Solution
The fourth proportional to 571,140.74, 788,174.34 and 313,027.94 is: 431,978.62
Step by Step Solution
- Step 1: Write the proportion equation
571,140.74 : 788,174.34 = 313,027.94 : x - Step 2: Convert to fraction form
571,140.74/788,174.34 = 313,027.94/x - Step 3: Cross multiply
571,140.74x = 788,174.34 × 313,027.94 - Step 4: Simplify right side
571,140.74x = 246,720,590,011.06 - Step 5: Solve for x
x = 246,720,590,011.06/571,140.74 - Step 6: Final answer
x = 431,978.62
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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.