Finding the Fourth Proportional to 579,939.40, 869,909.10 and 534,449.80
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Solution
The fourth proportional to 579,939.40, 869,909.10 and 534,449.80 is: 801,674.70
Step by Step Solution
- Step 1: Write the proportion equation
579,939.40 : 869,909.10 = 534,449.80 : x - Step 2: Convert to fraction form
579,939.40/869,909.10 = 534,449.80/x - Step 3: Cross multiply
579,939.40x = 869,909.10 × 534,449.80 - Step 4: Simplify right side
579,939.40x = 464,922,744,513.18 - Step 5: Solve for x
x = 464,922,744,513.18/579,939.40 - Step 6: Final answer
x = 801,674.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.