Finding the Fourth Proportional to 875,100.55, 1,207,631.60 and 487,911.37
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Solution
The fourth proportional to 875,100.55, 1,207,631.60 and 487,911.37 is: 673,313.70
Step by Step Solution
- Step 1: Write the proportion equation
875,100.55 : 1,207,631.60 = 487,911.37 : x - Step 2: Convert to fraction form
875,100.55/1,207,631.60 = 487,911.37/x - Step 3: Cross multiply
875,100.55x = 1,207,631.60 × 487,911.37 - Step 4: Simplify right side
875,100.55x = 589,217,182,373.13 - Step 5: Solve for x
x = 589,217,182,373.13/875,100.55 - Step 6: Final answer
x = 673,313.70
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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.