Finding the Fourth Proportional to 786,985.92, 1,085,905.08 and 442,774.08
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Solution
The fourth proportional to 786,985.92, 1,085,905.08 and 442,774.08 is: 610,952.00
Step by Step Solution
- Step 1: Write the proportion equation
786,985.92 : 1,085,905.08 = 442,774.08 : x - Step 2: Convert to fraction form
786,985.92/1,085,905.08 = 442,774.08/x - Step 3: Cross multiply
786,985.92x = 1,085,905.08 × 442,774.08 - Step 4: Simplify right side
786,985.92x = 480,810,622,764.33 - Step 5: Solve for x
x = 480,810,622,764.33/786,985.92 - Step 6: Final answer
x = 610,952.00
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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.