Finding the Fourth Proportional to 4,977,207.40, 7,465,811.10 and 1,782,437.80
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Solution
The fourth proportional to 4,977,207.40, 7,465,811.10 and 1,782,437.80 is: 2,673,656.70
Step by Step Solution
- Step 1: Write the proportion equation
4,977,207.40 : 7,465,811.10 = 1,782,437.80 : x - Step 2: Convert to fraction form
4,977,207.40/7,465,811.10 = 1,782,437.80/x - Step 3: Cross multiply
4,977,207.40x = 7,465,811.10 × 1,782,437.80 - Step 4: Simplify right side
4,977,207.40x = 13,307,343,912,299.58 - Step 5: Solve for x
x = 13,307,343,912,299.58/4,977,207.40 - Step 6: Final answer
x = 2,673,656.70
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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.