Finding the Fourth Proportional to 1,121,875.40, 1,682,813.10 and 673,977.80
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Solution
The fourth proportional to 1,121,875.40, 1,682,813.10 and 673,977.80 is: 1,010,966.70
Step by Step Solution
- Step 1: Write the proportion equation
1,121,875.40 : 1,682,813.10 = 673,977.80 : x - Step 2: Convert to fraction form
1,121,875.40/1,682,813.10 = 673,977.80/x - Step 3: Cross multiply
1,121,875.40x = 1,682,813.10 × 673,977.80 - Step 4: Simplify right side
1,121,875.40x = 1,134,178,670,949.18 - Step 5: Solve for x
x = 1,134,178,670,949.18/1,121,875.40 - Step 6: Final answer
x = 1,010,966.70
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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.