Finding the Fourth Proportional to 519,153.48, 716,430.44 and 289,708.32
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Solution
The fourth proportional to 519,153.48, 716,430.44 and 289,708.32 is: 399,796.72
Step by Step Solution
- Step 1: Write the proportion equation
519,153.48 : 716,430.44 = 289,708.32 : x - Step 2: Convert to fraction form
519,153.48/716,430.44 = 289,708.32/x - Step 3: Cross multiply
519,153.48x = 716,430.44 × 289,708.32 - Step 4: Simplify right side
519,153.48x = 207,555,859,169.26 - Step 5: Solve for x
x = 207,555,859,169.26/519,153.48 - Step 6: Final answer
x = 399,796.72
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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.