Finding the Fourth Proportional to 689,896.14, 952,087.98 and 383,992.08
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Solution
The fourth proportional to 689,896.14, 952,087.98 and 383,992.08 is: 529,926.50
Step by Step Solution
- Step 1: Write the proportion equation
689,896.14 : 952,087.98 = 383,992.08 : x - Step 2: Convert to fraction form
689,896.14/952,087.98 = 383,992.08/x - Step 3: Cross multiply
689,896.14x = 952,087.98 × 383,992.08 - Step 4: Simplify right side
689,896.14x = 365,594,243,783.20 - Step 5: Solve for x
x = 365,594,243,783.20/689,896.14 - Step 6: Final answer
x = 529,926.50
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1.5x scale
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.