Finding the Fourth Proportional to 3,937,008.20, 5,905,512.30 and 1,277,616.20
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Solution
The fourth proportional to 3,937,008.20, 5,905,512.30 and 1,277,616.20 is: 1,916,424.30
Step by Step Solution
- Step 1: Write the proportion equation
3,937,008.20 : 5,905,512.30 = 1,277,616.20 : x - Step 2: Convert to fraction form
3,937,008.20/5,905,512.30 = 1,277,616.20/x - Step 3: Cross multiply
3,937,008.20x = 5,905,512.30 × 1,277,616.20 - Step 4: Simplify right side
3,937,008.20x = 7,544,978,183,779.26 - Step 5: Solve for x
x = 7,544,978,183,779.26/3,937,008.20 - Step 6: Final answer
x = 1,916,424.30
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1.5x scale
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.