Finding the Fourth Proportional to 1,268,203.08, 1,750,142.80 and 687,445.23
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Solution
The fourth proportional to 1,268,203.08, 1,750,142.80 and 687,445.23 is: 948,686.64
Step by Step Solution
- Step 1: Write the proportion equation
1,268,203.08 : 1,750,142.80 = 687,445.23 : x - Step 2: Convert to fraction form
1,268,203.08/1,750,142.80 = 687,445.23/x - Step 3: Cross multiply
1,268,203.08x = 1,750,142.80 × 687,445.23 - Step 4: Simplify right side
1,268,203.08x = 1,203,127,317,256.63 - Step 5: Solve for x
x = 1,203,127,317,256.63/1,268,203.08 - Step 6: Final answer
x = 948,686.64
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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.