Finding the Fourth Proportional to 886,720.25, 1,330,267.18 and 287,634.63
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Solution
The fourth proportional to 886,720.25, 1,330,267.18 and 287,634.63 is: 431,512.53
Step by Step Solution
- Step 1: Write the proportion equation
886,720.25 : 1,330,267.18 = 287,634.63 : x - Step 2: Convert to fraction form
886,720.25/1,330,267.18 = 287,634.63/x - Step 3: Cross multiply
886,720.25x = 1,330,267.18 × 287,634.63 - Step 4: Simplify right side
886,720.25x = 382,630,900,030.93 - Step 5: Solve for x
x = 382,630,900,030.93/886,720.25 - Step 6: Final answer
x = 431,512.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.