Finding the Fourth Proportional to 554,625.62, 765,317.52 and 312,894.08
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Solution
The fourth proportional to 554,625.62, 765,317.52 and 312,894.08 is: 431,756.69
Step by Step Solution
- Step 1: Write the proportion equation
554,625.62 : 765,317.52 = 312,894.08 : x - Step 2: Convert to fraction form
554,625.62/765,317.52 = 312,894.08/x - Step 3: Cross multiply
554,625.62x = 765,317.52 × 312,894.08 - Step 4: Simplify right side
554,625.62x = 239,463,317,501.69 - Step 5: Solve for x
x = 239,463,317,501.69/554,625.62 - Step 6: Final answer
x = 431,756.69
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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.