Finding the Fourth Proportional to 1,278,345.60, 1,763,911.44 and 727,003.08
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Solution
The fourth proportional to 1,278,345.60, 1,763,911.44 and 727,003.08 is: 1,003,147.39
Step by Step Solution
- Step 1: Write the proportion equation
1,278,345.60 : 1,763,911.44 = 727,003.08 : x - Step 2: Convert to fraction form
1,278,345.60/1,763,911.44 = 727,003.08/x - Step 3: Cross multiply
1,278,345.60x = 1,763,911.44 × 727,003.08 - Step 4: Simplify right side
1,278,345.60x = 1,282,369,049,727.24 - Step 5: Solve for x
x = 1,282,369,049,727.24/1,278,345.60 - Step 6: Final answer
x = 1,003,147.39
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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.