Finding the Fourth Proportional to 1,216,351.62, 1,678,420.14 and 672,414.35
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Solution
The fourth proportional to 1,216,351.62, 1,678,420.14 and 672,414.35 is: 927,851.59
Step by Step Solution
- Step 1: Write the proportion equation
1,216,351.62 : 1,678,420.14 = 672,414.35 : x - Step 2: Convert to fraction form
1,216,351.62/1,678,420.14 = 672,414.35/x - Step 3: Cross multiply
1,216,351.62x = 1,678,420.14 × 672,414.35 - Step 4: Simplify right side
1,216,351.62x = 1,128,593,787,465.01 - Step 5: Solve for x
x = 1,128,593,787,465.01/1,216,351.62 - Step 6: Final answer
x = 927,851.59
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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.