Finding the Fourth Proportional to 1,432,201.38, 1,976,398.47 and 787,621.58
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Solution
The fourth proportional to 1,432,201.38, 1,976,398.47 and 787,621.58 is: 1,086,896.09
Step by Step Solution
- Step 1: Write the proportion equation
1,432,201.38 : 1,976,398.47 = 787,621.58 : x - Step 2: Convert to fraction form
1,432,201.38/1,976,398.47 = 787,621.58/x - Step 3: Cross multiply
1,432,201.38x = 1,976,398.47 × 787,621.58 - Step 4: Simplify right side
1,432,201.38x = 1,556,654,085,650.98 - Step 5: Solve for x
x = 1,556,654,085,650.98/1,432,201.38 - Step 6: Final answer
x = 1,086,896.09
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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.