Finding the Fourth Proportional to 1,863,590.20, 2,571,720.55 and 1,036,659.70
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Solution
The fourth proportional to 1,863,590.20, 2,571,720.55 and 1,036,659.70 is: 1,430,571.51
Step by Step Solution
- Step 1: Write the proportion equation
1,863,590.20 : 2,571,720.55 = 1,036,659.70 : x - Step 2: Convert to fraction form
1,863,590.20/2,571,720.55 = 1,036,659.70/x - Step 3: Cross multiply
1,863,590.20x = 2,571,720.55 × 1,036,659.70 - Step 4: Simplify right side
1,863,590.20x = 2,665,999,053,782.90 - Step 5: Solve for x
x = 2,665,999,053,782.90/1,863,590.20 - Step 6: Final answer
x = 1,430,571.51
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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.