Finding the Fourth Proportional to 787,386.96, 1,086,562.72 and 465,201.36
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Solution
The fourth proportional to 787,386.96, 1,086,562.72 and 465,201.36 is: 641,959.39
Step by Step Solution
- Step 1: Write the proportion equation
787,386.96 : 1,086,562.72 = 465,201.36 : x - Step 2: Convert to fraction form
787,386.96/1,086,562.72 = 465,201.36/x - Step 3: Cross multiply
787,386.96x = 1,086,562.72 × 465,201.36 - Step 4: Simplify right side
787,386.96x = 505,470,455,069.30 - Step 5: Solve for x
x = 505,470,455,069.30/787,386.96 - Step 6: Final answer
x = 641,959.39
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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.