Finding the Fourth Proportional to 3,851,305.74, 5,775,590.75 and 1,421,939.16
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Solution
The fourth proportional to 3,851,305.74, 5,775,590.75 and 1,421,939.16 is: 2,132,403.71
Step by Step Solution
- Step 1: Write the proportion equation
3,851,305.74 : 5,775,590.75 = 1,421,939.16 : x - Step 2: Convert to fraction form
3,851,305.74/5,775,590.75 = 1,421,939.16/x - Step 3: Cross multiply
3,851,305.74x = 5,775,590.75 × 1,421,939.16 - Step 4: Simplify right side
3,851,305.74x = 8,212,538,652,449.07 - Step 5: Solve for x
x = 8,212,538,652,449.07/3,851,305.74 - Step 6: Final answer
x = 2,132,403.71
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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.