Finding the Fourth Proportional to 845,070.25, 1,267,651.55 and 213,989.53
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Solution
The fourth proportional to 845,070.25, 1,267,651.55 and 213,989.53 is: 320,995.99
Step by Step Solution
- Step 1: Write the proportion equation
845,070.25 : 1,267,651.55 = 213,989.53 : x - Step 2: Convert to fraction form
845,070.25/1,267,651.55 = 213,989.53/x - Step 3: Cross multiply
845,070.25x = 1,267,651.55 × 213,989.53 - Step 4: Simplify right side
845,070.25x = 271,264,159,388.27 - Step 5: Solve for x
x = 271,264,159,388.27/845,070.25 - Step 6: Final answer
x = 320,995.99
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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.