Finding the Fourth Proportional to 704,816.74, 972,646.67 and 398,887.53
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Solution
The fourth proportional to 704,816.74, 972,646.67 and 398,887.53 is: 550,464.55
Step by Step Solution
- Step 1: Write the proportion equation
704,816.74 : 972,646.67 = 398,887.53 : x - Step 2: Convert to fraction form
704,816.74/972,646.67 = 398,887.53/x - Step 3: Cross multiply
704,816.74x = 972,646.67 × 398,887.53 - Step 4: Simplify right side
704,816.74x = 387,976,625,764.59 - Step 5: Solve for x
x = 387,976,625,764.59/704,816.74 - Step 6: Final answer
x = 550,464.55
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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.