Finding the Fourth Proportional to 487,921.74, 673,637.64 and 313,562.67
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Solution
The fourth proportional to 487,921.74, 673,637.64 and 313,562.67 is: 432,912.90
Step by Step Solution
- Step 1: Write the proportion equation
487,921.74 : 673,637.64 = 313,562.67 : x - Step 2: Convert to fraction form
487,921.74/673,637.64 = 313,562.67/x - Step 3: Cross multiply
487,921.74x = 673,637.64 × 313,562.67 - Step 4: Simplify right side
487,921.74x = 211,227,617,010.90 - Step 5: Solve for x
x = 211,227,617,010.90/487,921.74 - Step 6: Final answer
x = 432,912.90
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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.