Finding the Fourth Proportional to 4,885,439.58, 7,328,221.68 and 1,291,175.46
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Solution
The fourth proportional to 4,885,439.58, 7,328,221.68 and 1,291,175.46 is: 1,936,779.66
Step by Step Solution
- Step 1: Write the proportion equation
4,885,439.58 : 7,328,221.68 = 1,291,175.46 : x - Step 2: Convert to fraction form
4,885,439.58/7,328,221.68 = 1,291,175.46/x - Step 3: Cross multiply
4,885,439.58x = 7,328,221.68 × 1,291,175.46 - Step 4: Simplify right side
4,885,439.58x = 9,462,019,998,655.97 - Step 5: Solve for x
x = 9,462,019,998,655.97/4,885,439.58 - Step 6: Final answer
x = 1,936,779.66
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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.