Finding the Fourth Proportional to 713,703.40, 984,909.18 and 411,897.40
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Solution
The fourth proportional to 713,703.40, 984,909.18 and 411,897.40 is: 568,417.54
Step by Step Solution
- Step 1: Write the proportion equation
713,703.40 : 984,909.18 = 411,897.40 : x - Step 2: Convert to fraction form
713,703.40/984,909.18 = 411,897.40/x - Step 3: Cross multiply
713,703.40x = 984,909.18 × 411,897.40 - Step 4: Simplify right side
713,703.40x = 405,681,530,478.13 - Step 5: Solve for x
x = 405,681,530,478.13/713,703.40 - Step 6: Final answer
x = 568,417.54
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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.