Finding the Fourth Proportional to 875,103.80, 1,207,636.09 and 487,914.62
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Solution
The fourth proportional to 875,103.80, 1,207,636.09 and 487,914.62 is: 673,318.19
Step by Step Solution
- Step 1: Write the proportion equation
875,103.80 : 1,207,636.09 = 487,914.62 : x - Step 2: Convert to fraction form
875,103.80/1,207,636.09 = 487,914.62/x - Step 3: Cross multiply
875,103.80x = 1,207,636.09 × 487,914.62 - Step 4: Simplify right side
875,103.80x = 589,223,303,950.64 - Step 5: Solve for x
x = 589,223,303,950.64/875,103.80 - Step 6: Final answer
x = 673,318.19
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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.