Finding the Fourth Proportional to 1,427,874.36, 2,142,372.27 and 628,595.12
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Solution
The fourth proportional to 1,427,874.36, 2,142,372.27 and 628,595.12 is: 943,139.52
Step by Step Solution
- Step 1: Write the proportion equation
1,427,874.36 : 2,142,372.27 = 628,595.12 : x - Step 2: Convert to fraction form
1,427,874.36/2,142,372.27 = 628,595.12/x - Step 3: Cross multiply
1,427,874.36x = 2,142,372.27 × 628,595.12 - Step 4: Simplify right side
1,427,874.36x = 1,346,684,743,433.46 - Step 5: Solve for x
x = 1,346,684,743,433.46/1,427,874.36 - Step 6: Final answer
x = 943,139.52
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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.