Finding the Fourth Proportional to 1,905,919.80, 2,860,063.92 and 1,187,671.20
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Solution
The fourth proportional to 1,905,919.80, 2,860,063.92 and 1,187,671.20 is: 1,782,244.75
Step by Step Solution
- Step 1: Write the proportion equation
1,905,919.80 : 2,860,063.92 = 1,187,671.20 : x - Step 2: Convert to fraction form
1,905,919.80/2,860,063.92 = 1,187,671.20/x - Step 3: Cross multiply
1,905,919.80x = 2,860,063.92 × 1,187,671.20 - Step 4: Simplify right side
1,905,919.80x = 3,396,815,547,943.10 - Step 5: Solve for x
x = 3,396,815,547,943.10/1,905,919.80 - Step 6: Final answer
x = 1,782,244.75
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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.