Finding the Fourth Proportional to 1,689,701.40, 2,534,557.32 and 427,528.80
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Solution
The fourth proportional to 1,689,701.40, 2,534,557.32 and 427,528.80 is: 641,294.52
Step by Step Solution
- Step 1: Write the proportion equation
1,689,701.40 : 2,534,557.32 = 427,528.80 : x - Step 2: Convert to fraction form
1,689,701.40/2,534,557.32 = 427,528.80/x - Step 3: Cross multiply
1,689,701.40x = 2,534,557.32 × 427,528.80 - Step 4: Simplify right side
1,689,701.40x = 1,083,596,249,550.82 - Step 5: Solve for x
x = 1,083,596,249,550.82/1,689,701.40 - Step 6: Final answer
x = 641,294.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.