Finding the Fourth Proportional to 776,579.70, 1,165,035.87 and 439,779.54
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Solution
The fourth proportional to 776,579.70, 1,165,035.87 and 439,779.54 is: 659,763.50
Step by Step Solution
- Step 1: Write the proportion equation
776,579.70 : 1,165,035.87 = 439,779.54 : x - Step 2: Convert to fraction form
776,579.70/1,165,035.87 = 439,779.54/x - Step 3: Cross multiply
776,579.70x = 1,165,035.87 × 439,779.54 - Step 4: Simplify right side
776,579.70x = 512,358,938,992.10 - Step 5: Solve for x
x = 512,358,938,992.10/776,579.70 - Step 6: Final answer
x = 659,763.50
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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.