Finding the Fourth Proportional to 713,403.81, 984,497.00 and 391,106.99
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Solution
The fourth proportional to 713,403.81, 984,497.00 and 391,106.99 is: 539,727.50
Step by Step Solution
- Step 1: Write the proportion equation
713,403.81 : 984,497.00 = 391,106.99 : x - Step 2: Convert to fraction form
713,403.81/984,497.00 = 391,106.99/x - Step 3: Cross multiply
713,403.81x = 984,497.00 × 391,106.99 - Step 4: Simplify right side
713,403.81x = 385,043,651,456.01 - Step 5: Solve for x
x = 385,043,651,456.01/713,403.81 - Step 6: Final answer
x = 539,727.50
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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.