Finding the Fourth Proportional to 1,427,701.14, 1,970,217.27 and 783,116.91
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Solution
The fourth proportional to 1,427,701.14, 1,970,217.27 and 783,116.91 is: 1,080,695.68
Step by Step Solution
- Step 1: Write the proportion equation
1,427,701.14 : 1,970,217.27 = 783,116.91 : x - Step 2: Convert to fraction form
1,427,701.14/1,970,217.27 = 783,116.91/x - Step 3: Cross multiply
1,427,701.14x = 1,970,217.27 × 783,116.91 - Step 4: Simplify right side
1,427,701.14x = 1,542,910,460,511.04 - Step 5: Solve for x
x = 1,542,910,460,511.04/1,427,701.14 - Step 6: Final answer
x = 1,080,695.68
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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.