Finding the Fourth Proportional to 2,534,778.78, 3,498,134.79 and 1,447,399.65
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Solution
The fourth proportional to 2,534,778.78, 3,498,134.79 and 1,447,399.65 is: 1,997,491.50
Step by Step Solution
- Step 1: Write the proportion equation
2,534,778.78 : 3,498,134.79 = 1,447,399.65 : x - Step 2: Convert to fraction form
2,534,778.78/3,498,134.79 = 1,447,399.65/x - Step 3: Cross multiply
2,534,778.78x = 3,498,134.79 × 1,447,399.65 - Step 4: Simplify right side
2,534,778.78x = 5,063,199,070,698.82 - Step 5: Solve for x
x = 5,063,199,070,698.82/2,534,778.78 - Step 6: Final answer
x = 1,997,491.50
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1.5x scale
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.