Finding the Fourth Proportional to 2,378,455.57, 3,282,270.77 and 1,290,727.12
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Solution
The fourth proportional to 2,378,455.57, 3,282,270.77 and 1,290,727.12 is: 1,781,204.56
Step by Step Solution
- Step 1: Write the proportion equation
2,378,455.57 : 3,282,270.77 = 1,290,727.12 : x - Step 2: Convert to fraction form
2,378,455.57/3,282,270.77 = 1,290,727.12/x - Step 3: Cross multiply
2,378,455.57x = 3,282,270.77 × 1,290,727.12 - Step 4: Simplify right side
2,378,455.57x = 4,236,515,893,043.42 - Step 5: Solve for x
x = 4,236,515,893,043.42/2,378,455.57 - Step 6: Final answer
x = 1,781,204.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.