Finding the Fourth Proportional to 638,979.30, 959,246.55 and 323,273.70
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Solution
The fourth proportional to 638,979.30, 959,246.55 and 323,273.70 is: 485,303.95
Step by Step Solution
- Step 1: Write the proportion equation
638,979.30 : 959,246.55 = 323,273.70 : x - Step 2: Convert to fraction form
638,979.30/959,246.55 = 323,273.70/x - Step 3: Cross multiply
638,979.30x = 959,246.55 × 323,273.70 - Step 4: Simplify right side
638,979.30x = 310,099,181,430.74 - Step 5: Solve for x
x = 310,099,181,430.74/638,979.30 - Step 6: Final answer
x = 485,303.95
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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.