Finding the Fourth Proportional to 1,079,807.58, 1,490,422.68 and 620,972.28
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Solution
The fourth proportional to 1,079,807.58, 1,490,422.68 and 620,972.28 is: 857,107.49
Step by Step Solution
- Step 1: Write the proportion equation
1,079,807.58 : 1,490,422.68 = 620,972.28 : x - Step 2: Convert to fraction form
1,079,807.58/1,490,422.68 = 620,972.28/x - Step 3: Cross multiply
1,079,807.58x = 1,490,422.68 × 620,972.28 - Step 4: Simplify right side
1,079,807.58x = 925,511,169,763.31 - Step 5: Solve for x
x = 925,511,169,763.31/1,079,807.58 - Step 6: Final answer
x = 857,107.49
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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.