Finding the Fourth Proportional to 515,110.25, 710,888.00 and 285,688.49
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Solution
The fourth proportional to 515,110.25, 710,888.00 and 285,688.49 is: 394,269.99
Step by Step Solution
- Step 1: Write the proportion equation
515,110.25 : 710,888.00 = 285,688.49 : x - Step 2: Convert to fraction form
515,110.25/710,888.00 = 285,688.49/x - Step 3: Cross multiply
515,110.25x = 710,888.00 × 285,688.49 - Step 4: Simplify right side
515,110.25x = 203,092,514,296.24 - Step 5: Solve for x
x = 203,092,514,296.24/515,110.25 - Step 6: Final answer
x = 394,269.99
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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.