Finding the Fourth Proportional to 875,102.80, 1,207,634.71 and 487,913.62
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Solution
The fourth proportional to 875,102.80, 1,207,634.71 and 487,913.62 is: 673,316.81
Step by Step Solution
- Step 1: Write the proportion equation
875,102.80 : 1,207,634.71 = 487,913.62 : x - Step 2: Convert to fraction form
875,102.80/1,207,634.71 = 487,913.62/x - Step 3: Cross multiply
875,102.80x = 1,207,634.71 × 487,913.62 - Step 4: Simplify right side
875,102.80x = 589,221,422,993.75 - Step 5: Solve for x
x = 589,221,422,993.75/875,102.80 - Step 6: Final answer
x = 673,316.81
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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.