Finding the Fourth Proportional to 1,425,397.80, 2,138,078.84 and 345,919.31
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Solution
The fourth proportional to 1,425,397.80, 2,138,078.84 and 345,919.31 is: 518,874.63
Step by Step Solution
- Step 1: Write the proportion equation
1,425,397.80 : 2,138,078.84 = 345,919.31 : x - Step 2: Convert to fraction form
1,425,397.80/2,138,078.84 = 345,919.31/x - Step 3: Cross multiply
1,425,397.80x = 2,138,078.84 × 345,919.31 - Step 4: Simplify right side
1,425,397.80x = 739,602,752,656.21 - Step 5: Solve for x
x = 739,602,752,656.21/1,425,397.80 - Step 6: Final answer
x = 518,874.63
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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.