Finding the Fourth Proportional to 1,630,811.70, 2,438,344.35 and 1,205,658.90
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Solution
The fourth proportional to 1,630,811.70, 2,438,344.35 and 1,205,658.90 is: 1,802,667.69
Step by Step Solution
- Step 1: Write the proportion equation
1,630,811.70 : 2,438,344.35 = 1,205,658.90 : x - Step 2: Convert to fraction form
1,630,811.70/2,438,344.35 = 1,205,658.90/x - Step 3: Cross multiply
1,630,811.70x = 2,438,344.35 × 1,205,658.90 - Step 4: Simplify right side
1,630,811.70x = 2,939,811,566,842.22 - Step 5: Solve for x
x = 2,939,811,566,842.22/1,630,811.70 - Step 6: Final answer
x = 1,802,667.69
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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.