Finding the Fourth Proportional to 4,681,438.12, 7,022,157.08 and 1,315,645.12
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Solution
The fourth proportional to 4,681,438.12, 7,022,157.08 and 1,315,645.12 is: 1,973,467.65
Step by Step Solution
- Step 1: Write the proportion equation
4,681,438.12 : 7,022,157.08 = 1,315,645.12 : x - Step 2: Convert to fraction form
4,681,438.12/7,022,157.08 = 1,315,645.12/x - Step 3: Cross multiply
4,681,438.12x = 7,022,157.08 × 1,315,645.12 - Step 4: Simplify right side
4,681,438.12x = 9,238,666,694,175.45 - Step 5: Solve for x
x = 9,238,666,694,175.45/4,681,438.12 - Step 6: Final answer
x = 1,973,467.65
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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.