Finding the Fourth Proportional to 977,138.70, 1,465,708.05 and 809,177.10
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Solution
The fourth proportional to 977,138.70, 1,465,708.05 and 809,177.10 is: 1,213,765.65
Step by Step Solution
- Step 1: Write the proportion equation
977,138.70 : 1,465,708.05 = 809,177.10 : x - Step 2: Convert to fraction form
977,138.70/1,465,708.05 = 809,177.10/x - Step 3: Cross multiply
977,138.70x = 1,465,708.05 × 809,177.10 - Step 4: Simplify right side
977,138.70x = 1,186,017,389,345.66 - Step 5: Solve for x
x = 1,186,017,389,345.66/977,138.70 - Step 6: Final answer
x = 1,213,765.65
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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.