Finding the Fourth Proportional to 783,424.48, 1,081,456.53 and 529,120.12
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Solution
The fourth proportional to 783,424.48, 1,081,456.53 and 529,120.12 is: 730,409.15
Step by Step Solution
- Step 1: Write the proportion equation
783,424.48 : 1,081,456.53 = 529,120.12 : x - Step 2: Convert to fraction form
783,424.48/1,081,456.53 = 529,120.12/x - Step 3: Cross multiply
783,424.48x = 1,081,456.53 × 529,120.12 - Step 4: Simplify right side
783,424.48x = 572,220,408,928.38 - Step 5: Solve for x
x = 572,220,408,928.38/783,424.48 - Step 6: Final answer
x = 730,409.15
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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.