Finding the Fourth Proportional to 1,690,116.05, 2,332,340.28 and 915,731.75
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Solution
The fourth proportional to 1,690,116.05, 2,332,340.28 and 915,731.75 is: 1,263,699.05
Step by Step Solution
- Step 1: Write the proportion equation
1,690,116.05 : 2,332,340.28 = 915,731.75 : x - Step 2: Convert to fraction form
1,690,116.05/2,332,340.28 = 915,731.75/x - Step 3: Cross multiply
1,690,116.05x = 2,332,340.28 × 915,731.75 - Step 4: Simplify right side
1,690,116.05x = 2,135,798,052,030.74 - Step 5: Solve for x
x = 2,135,798,052,030.74/1,690,116.05 - Step 6: Final answer
x = 1,263,699.05
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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.