Finding the Fourth Proportional to 1,268,941.14, 1,751,557.53 and 1,134,420.15
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Solution
The fourth proportional to 1,268,941.14, 1,751,557.53 and 1,134,420.15 is: 1,565,874.17
Step by Step Solution
- Step 1: Write the proportion equation
1,268,941.14 : 1,751,557.53 = 1,134,420.15 : x - Step 2: Convert to fraction form
1,268,941.14/1,751,557.53 = 1,134,420.15/x - Step 3: Cross multiply
1,268,941.14x = 1,751,557.53 × 1,134,420.15 - Step 4: Simplify right side
1,268,941.14x = 1,987,002,155,916.23 - Step 5: Solve for x
x = 1,987,002,155,916.23/1,268,941.14 - Step 6: Final answer
x = 1,565,874.17
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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.