Finding the Fourth Proportional to 1,434,324.90, 1,979,374.26 and 861,374.64
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Solution
The fourth proportional to 1,434,324.90, 1,979,374.26 and 861,374.64 is: 1,188,700.55
Step by Step Solution
- Step 1: Write the proportion equation
1,434,324.90 : 1,979,374.26 = 861,374.64 : x - Step 2: Convert to fraction form
1,434,324.90/1,979,374.26 = 861,374.64/x - Step 3: Cross multiply
1,434,324.90x = 1,979,374.26 × 861,374.64 - Step 4: Simplify right side
1,434,324.90x = 1,704,982,790,632.77 - Step 5: Solve for x
x = 1,704,982,790,632.77/1,434,324.90 - Step 6: Final answer
x = 1,188,700.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.