Finding the Fourth Proportional to 1,689,515.29, 2,534,281.35 and 427,344.13
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Solution
The fourth proportional to 1,689,515.29, 2,534,281.35 and 427,344.13 is: 641,018.32
Step by Step Solution
- Step 1: Write the proportion equation
1,689,515.29 : 2,534,281.35 = 427,344.13 : x - Step 2: Convert to fraction form
1,689,515.29/2,534,281.35 = 427,344.13/x - Step 3: Cross multiply
1,689,515.29x = 2,534,281.35 × 427,344.13 - Step 4: Simplify right side
1,689,515.29x = 1,083,010,258,690.98 - Step 5: Solve for x
x = 1,083,010,258,690.98/1,689,515.29 - Step 6: Final answer
x = 641,018.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.