Finding the Fourth Proportional to 876,194.28, 1,209,184.74 and 553,787.28
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Solution
The fourth proportional to 876,194.28, 1,209,184.74 and 553,787.28 is: 764,249.60
Step by Step Solution
- Step 1: Write the proportion equation
876,194.28 : 1,209,184.74 = 553,787.28 : x - Step 2: Convert to fraction form
876,194.28/1,209,184.74 = 553,787.28/x - Step 3: Cross multiply
876,194.28x = 1,209,184.74 × 553,787.28 - Step 4: Simplify right side
876,194.28x = 669,631,128,182.11 - Step 5: Solve for x
x = 669,631,128,182.11/876,194.28 - Step 6: Final answer
x = 764,249.60
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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.