Finding the Fourth Proportional to 638,718.60, 958,040.29 and 239,325.94
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Solution
The fourth proportional to 638,718.60, 958,040.29 and 239,325.94 is: 358,974.81
Step by Step Solution
- Step 1: Write the proportion equation
638,718.60 : 958,040.29 = 239,325.94 : x - Step 2: Convert to fraction form
638,718.60/958,040.29 = 239,325.94/x - Step 3: Cross multiply
638,718.60x = 958,040.29 × 239,325.94 - Step 4: Simplify right side
638,718.60x = 229,283,886,975.29 - Step 5: Solve for x
x = 229,283,886,975.29/638,718.60 - Step 6: Final answer
x = 358,974.81
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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.