Finding the Fourth Proportional to 3,939,587.91, 5,435,705.69 and 2,390,814.99
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Solution
The fourth proportional to 3,939,587.91, 5,435,705.69 and 2,390,814.99 is: 3,298,762.95
Step by Step Solution
- Step 1: Write the proportion equation
3,939,587.91 : 5,435,705.69 = 2,390,814.99 : x - Step 2: Convert to fraction form
3,939,587.91/5,435,705.69 = 2,390,814.99/x - Step 3: Cross multiply
3,939,587.91x = 5,435,705.69 × 2,390,814.99 - Step 4: Simplify right side
3,939,587.91x = 12,995,766,632,926.22 - Step 5: Solve for x
x = 12,995,766,632,926.22/3,939,587.91 - Step 6: Final answer
x = 3,298,762.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.