Finding the Fourth Proportional to 523,491.36, 722,435.61 and 290,928.09
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Solution
The fourth proportional to 523,491.36, 722,435.61 and 290,928.09 is: 401,490.51
Step by Step Solution
- Step 1: Write the proportion equation
523,491.36 : 722,435.61 = 290,928.09 : x - Step 2: Convert to fraction form
523,491.36/722,435.61 = 290,928.09/x - Step 3: Cross multiply
523,491.36x = 722,435.61 × 290,928.09 - Step 4: Simplify right side
523,491.36x = 210,176,812,165.29 - Step 5: Solve for x
x = 210,176,812,165.29/523,491.36 - Step 6: Final answer
x = 401,490.51
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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.