Finding the Fourth Proportional to 867,530.19, 1,197,191.48 and 485,556.96
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Solution
The fourth proportional to 867,530.19, 1,197,191.48 and 485,556.96 is: 670,068.50
Step by Step Solution
- Step 1: Write the proportion equation
867,530.19 : 1,197,191.48 = 485,556.96 : x - Step 2: Convert to fraction form
867,530.19/1,197,191.48 = 485,556.96/x - Step 3: Cross multiply
867,530.19x = 1,197,191.48 × 485,556.96 - Step 4: Simplify right side
867,530.19x = 581,304,653,138.92 - Step 5: Solve for x
x = 581,304,653,138.92/867,530.19 - Step 6: Final answer
x = 670,068.50
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1.5x scale
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.