Finding the Fourth Proportional to 1,009,958.63, 1,393,772.06 and 557,278.79
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Solution
The fourth proportional to 1,009,958.63, 1,393,772.06 and 557,278.79 is: 769,060.81
Step by Step Solution
- Step 1: Write the proportion equation
1,009,958.63 : 1,393,772.06 = 557,278.79 : x - Step 2: Convert to fraction form
1,009,958.63/1,393,772.06 = 557,278.79/x - Step 3: Cross multiply
1,009,958.63x = 1,393,772.06 × 557,278.79 - Step 4: Simplify right side
1,009,958.63x = 776,719,601,556.94 - Step 5: Solve for x
x = 776,719,601,556.94/1,009,958.63 - Step 6: Final answer
x = 769,060.81
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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.