Finding the Fourth Proportional to 708,755.99, 978,047.83 and 402,791.95
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Solution
The fourth proportional to 708,755.99, 978,047.83 and 402,791.95 is: 555,832.75
Step by Step Solution
- Step 1: Write the proportion equation
708,755.99 : 978,047.83 = 402,791.95 : x - Step 2: Convert to fraction form
708,755.99/978,047.83 = 402,791.95/x - Step 3: Cross multiply
708,755.99x = 978,047.83 × 402,791.95 - Step 4: Simplify right side
708,755.99x = 393,949,792,638.97 - Step 5: Solve for x
x = 393,949,792,638.97/708,755.99 - Step 6: Final answer
x = 555,832.75
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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.