Finding the Fourth Proportional to 1,928,420.17, 2,661,490.94 and 1,193,610.14
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Solution
The fourth proportional to 1,928,420.17, 2,661,490.94 and 1,193,610.14 is: 1,647,349.79
Step by Step Solution
- Step 1: Write the proportion equation
1,928,420.17 : 2,661,490.94 = 1,193,610.14 : x - Step 2: Convert to fraction form
1,928,420.17/2,661,490.94 = 1,193,610.14/x - Step 3: Cross multiply
1,928,420.17x = 2,661,490.94 × 1,193,610.14 - Step 4: Simplify right side
1,928,420.17x = 3,176,782,563,178.70 - Step 5: Solve for x
x = 3,176,782,563,178.70/1,928,420.17 - Step 6: Final answer
x = 1,647,349.79
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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.