Finding the Fourth Proportional to 679,721.99, 937,991.80 and 373,795.79
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Solution
The fourth proportional to 679,721.99, 937,991.80 and 373,795.79 is: 515,824.69
Step by Step Solution
- Step 1: Write the proportion equation
679,721.99 : 937,991.80 = 373,795.79 : x - Step 2: Convert to fraction form
679,721.99/937,991.80 = 373,795.79/x - Step 3: Cross multiply
679,721.99x = 937,991.80 × 373,795.79 - Step 4: Simplify right side
679,721.99x = 350,617,385,894.52 - Step 5: Solve for x
x = 350,617,385,894.52/679,721.99 - Step 6: Final answer
x = 515,824.69
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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.