Finding the Fourth Proportional to 1,315,057.28, 1,972,605.35 and 368,368.16
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Solution
The fourth proportional to 1,315,057.28, 1,972,605.35 and 368,368.16 is: 552,557.68
Step by Step Solution
- Step 1: Write the proportion equation
1,315,057.28 : 1,972,605.35 = 368,368.16 : x - Step 2: Convert to fraction form
1,315,057.28/1,972,605.35 = 368,368.16/x - Step 3: Cross multiply
1,315,057.28x = 1,972,605.35 × 368,368.16 - Step 4: Simplify right side
1,315,057.28x = 726,644,994,243.55 - Step 5: Solve for x
x = 726,644,994,243.55/1,315,057.28 - Step 6: Final answer
x = 552,557.68
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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.