Finding the Fourth Proportional to 517,320.21, 713,964.03 and 313,365.14
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Solution
The fourth proportional to 517,320.21, 713,964.03 and 313,365.14 is: 432,481.53
Step by Step Solution
- Step 1: Write the proportion equation
517,320.21 : 713,964.03 = 313,365.14 : x - Step 2: Convert to fraction form
517,320.21/713,964.03 = 313,365.14/x - Step 3: Cross multiply
517,320.21x = 713,964.03 × 313,365.14 - Step 4: Simplify right side
517,320.21x = 223,731,438,215.91 - Step 5: Solve for x
x = 223,731,438,215.91/517,320.21 - Step 6: Final answer
x = 432,481.53
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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.