Finding the Fourth Proportional to 1,490,175.36, 2,224,444.32 and 1,379,157.12
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Solution
The fourth proportional to 1,490,175.36, 2,224,444.32 and 1,379,157.12 is: 2,058,722.96
Step by Step Solution
- Step 1: Write the proportion equation
1,490,175.36 : 2,224,444.32 = 1,379,157.12 : x - Step 2: Convert to fraction form
1,490,175.36/2,224,444.32 = 1,379,157.12/x - Step 3: Cross multiply
1,490,175.36x = 2,224,444.32 × 1,379,157.12 - Step 4: Simplify right side
1,490,175.36x = 3,067,858,221,971.56 - Step 5: Solve for x
x = 3,067,858,221,971.56/1,490,175.36 - Step 6: Final answer
x = 2,058,722.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.